单选题During volcanic ______, dark clouds of smoke fill the sky, bringing fears to local residents.
单选题
A recent report on population trend
conducted by the think {{U}}(1) {{/U}} of the World watch Institute
identifies signs of slowing growth in some countries. It says populations in 32
countries—all in the industrialized world—have stabilized because of declining
birthrates. But in a handful of developing countries where population is
slowing, the cause isn't something to {{U}}(2) {{/U}}, because more
people are dying. This trend is called "population fatigue", and
it's beginning in many of the developing countries that have experienced
{{U}}(3) {{/U}} birthrates and sharp population growth for several
decades. Governments in these countries are now having trouble dealing with
feeding, housing and educating an increasing number of children, {{U}}(4)
{{/U}} at the same time confronting the falling water {{U}}(5)
{{/U}}, deforestation and soil erosion that rapid population growth brings.
In these countries any new threat—infectious disease, drought or famine—can
become a {{U}}(6) {{/U}} crisis. AIDS is a case
{{U}}(7) {{/U}}. WHO estimates calculate that one-quarter of the
adult population of Zimbabwe and Botswana are infected with the AIDS virus,
{{U}}(8) {{/U}}, these countries stands to lose at least one-quarter of
their labor force in the next decade from AIDS alone, a situation {{U}}(9)
{{/U}} since the yellow fever swept through Europe in the 14'h
century. Social unrest is also increasing in these countries.
One example is the {{U}}(10) {{/U}} conflict between the Tutsis and the
Hutus in Rwanda, where population pressures reduced cropland {{U}}(11)
{{/U}} where it could no longer feed those who lived on it. Demands on
the world fisheries and shared water resources are likely to spark similar
conflicts. Already the waters of the Nile are so heavily used that little
reaches the Mediterranean, so any increase in demand or {{U}}(12) {{/U}}
in allocation will also increase tensions. The bottom line is
that human population growth is {{U}}(13) {{/U}} to slow one way or the
other. Developing societies will either recognize problems {{U}}(14)
{{/U}} the horizon and act to encourage smaller families — or unchecked
births will have their {{U}}(15) {{/U}} in rising death
rates.
单选题Watching these kids grow brings me satisfaction that is difficult to
surpass
.
单选题According to the survey, the sharers women consist of______.
单选题It is not clear whether the increase in reports is stemmed from greater human activity or is simply the result of more surveys.
单选题Where is the engineer who realized the ancient-dream from?
单选题Some of these studies (have shown) that although some people have trouble (to fall asleep), others have an (equally) difficult time (waking up).
单选题Factors leading to the crisis included poor regulation, mismanagement and {{U}}deception{{/U}} in the industry, and competition from other types of financial firms.
单选题A: How about the food I ordered? I've been waiting for nearly twenty minutes.B: Sorry. ______
单选题Why do Americans prefer to use nicknames when addressing one another?
单选题Woman: I can't wait to see the look on Ted's face when he opens up our gift. Man: Neither can I. Question: What does the man mean?
单选题I'm afraid there are people in the world who Uliterally/U do not know how to boil water.
单选题Some college students in China maintain a Ucasual/U correspondence with their former high school teachers.
单选题A: If I were you, I'd ride a bike to work. Taking a crowded bus during rush hours is really terrible. B: ______
单选题Although (well) (receiving) by business leaders, the book is not (meant to) whitewash any of the miscalculations and (shortsighted) decisions of some corporate bosses.
单选题Your grade will be based in large part on the Uoriginality/U of your ideas.
单选题Hague was elected as the Conservative Party leader partly because of his {{U}}ambiguous{{/U}} views on Britain's position in relation to its partners in the European Union.
单选题{{U}}Ahead of{{/U}} other parts of the nation, the territory of Wyoming granted women the vote in 1869.
单选题Would you please ______ these invitations to all the teachers of the English department?
单选题I was (so interested in) the video that I (watched) it (for) two hours before I (realized) it.A. so interestedB. watchedC. forD. realized