单选题Bret Harte, (which) best-known works describe life in California in the mid-1800's, (helped shape) the (literary) movement (called) local-color writing.

单选题Language belongs to each one of us, to the flower-seller ______ to the professor.

单选题The weather was good except for an ______ shower.

单选题According to Anne Krueger, long-term government protection given to steel companies

单选题A: Where is Tom this morning? B: He's got a cold. A: ______.

单选题Mr. Woods: I'd like a double room for tonight.Clerk: ______.Mr. Woods: Yes. I called you last week from New York. My name is George Woods.

单选题Today，household chores have been made much easier by electrical _____ .

单选题In the opening paragraph, why does the author prefer to use the term "desiredness"?

单选题According to a prominent philosopher, intolerance is a ______ to understanding.

单选题Wouldn't you rather your child ______ to bed early? A. go B. went C. would go D. goes

单选题Some of the words employed by Shakespeare in his works have become ______ and are no longer used in the present days.

单选题 After a long delay, she ______ replying to my e-mail.

单选题The old woman is {{U}}chronically{{/U}} ill in bed and seldom goes out.

单选题 Questions16-19 are based on the recording you have just heard.

单选题At the conference he expressed some personal views which brought him into ( ) with the Party leadership.

单选题Compared with the new teachers, ______.

单选题Gene therapy and gene-based drugs are two ways we could benefit from our growing mastery of genetic science. But there will be others as well. Here is one of the remarkable therapies on the cutting edge of genetic research that could make their way into mainstream medicine in the coming years. While it's true that just about every cell in the body has the instructions to make a complete human, most of those instructions are inactivated, and with good reason: the last thing you want for your brain cells is to start churning out stomach acid or your nose to turn into a kidney. The only time cells truly have the potential to turn into any and all body parts is very early in a pregnancy, when so-called stem cells haven't begun to specialize. Yet this untapped potential could be a terrific boon to medicine. Most diseases involve the death of healthy cells--brain cells in Alzheimer's, cardiac cells in heart disease, pancreatic cells in diabetes, to name a few. If doctors could isolate stem cells, then direct their growth, they might be able to furnish patients with healthy replacement tissue. It was incredibly difficult, but last fall scientists at the University of Wisconsin managed to isolate stem cells and get them to grow into neural, gut, muscle and bone cells. The process still can't be controlled, and may have unforeseen limitations. But if efforts to understand and master stem-cell development prove successful, doctors will have a therapeutic tool of incredible power. The same applies to cloning, which is really just the other side of the coin; true cloning, as first shown with the sheep Dolly two years ago, involves taking a developed cell and reactivating the genome within, resetting its developmental instructions to a pristine state. Once that happens, the rejuvenated cell can develop into a full-fledged animal, genetically identical to its parent. For agriculture, in which purely physical characteristics like milk production in a cow or low fat in a hog have real market value, biological carbon copies could become routine within a few years. This past year scientists have done for mice and cows what Ian Wilmot did for Dolly, and other creatures are bound to join the cloned menagerie in the coming year. Human cloning, on the other hand, may be technically feasible but legally and emotionally more difficult. Still, one day it will happen. The ability to reset body cells to a pristine, undeveloped state could give doctors exactly the same advantages they would get from stem cells: the potential to make healthy body tissues of all sorts, and thus to cure disease. That could prove to be a true "miracle cure./

单选题______telling her again since she won't listen to it?