单选题某学校为新生开设了4门选修课程，规定每位新生至少要选其中3门，则一位新生不同的选课方案共有（ ）
单选题阅读下列短文，然后根据短文的内容从每小题的四个选择项中选出最佳的一项。A In 2008, the United States Department of Agriculture USDA wanted to know if all the school lunches served to students were healthy.The answer was a big, fat NO!Th
单选题阅读下列短文，然后根据短文的内容从每小题的四个选择项中选出最佳的一项。A It’s that time of the year－graduation.The end of school year is nearly in sight, and it’s an especially big deal if you’re finishing high school or college.One am
单选题某学校为新生开设了4门选修课程，规定每位新生至少要选其中3门，则一位新生不同的选课方案共有（ ）
单选题阅读下列短文，然后根据短文的内容从每小题的四个选择项中选出最佳的一项。C It is widely accepted that English is the global language of modern times.About three decades ago, French was recognized as the language of diplomacy（外交），and Germ
单选题通读下面的短文，掌握其大意。然后，从每小题的四个选择项中选出可填入相应空白处的最佳选项。Eleanor Roosevelt was the wife of America’s 32nd president, Franklin Roosevelt.She helped her husband in many ways during his long21 life.She also became on
单选题通读下面的短文，掌握其大意。然后，从每小题的四个选择项中选出可填入相应空白处的最佳选项。Eleanor Roosevelt was the wife of America’s 32nd president, Franklin Roosevelt.She helped her husband in many ways during his long21 life.She also became on
单选题通读下面的短文，掌握其大意。然后，从每小题的四个选择项中选出可填入相应空白处的最佳选项。Eleanor Roosevelt was the wife of America’s 32nd president, Franklin Roosevelt.She helped her husband in many ways during his long21 life.She also became on
单选题若（ ）
单选题已知平面向量＝（－2，1）与＝（λ，2）垂直，则＝（ ）
单选题设，则＝（ ）
单选题现代人的麻烦，是他一直在试图使自己同自然相分离。他高高地坐在一堆聚合物、玻璃和钢铁的屋顶上，悠晃着两腿，遥看这行星上翻滚扭动的生命。人类早就在杜撰一种幻觉，认为自己高于其他生命。几千年来，人就这么脑汁绞尽，用心独专地想象着。近年来的生物科学，一直在使人根植于自然之中这一点成为必须正视的事实。人们越来越强烈地意识到，人与自然是多么密切地连在一起。我们大多数人过去牢牢抱有的旧观念，就是认为我们享有主宰
单选题－Excuse me, where is the meeting room？－Just a second.I’ll have someone ____you there.（ ）
单选题
单选题There’s plenty of time, so you ____worry about it.（ ）
单选题依次填入下列横线处的词语，恰当的一项是（ ） 从巴丹吉林沙漠西端的戈壁向北张望，____的戈壁一色铁青，稀疏的骆驼草棵棵憔悴，一棵和另一棵之间距离很远，像是____的战士，伫立在广漠的戈壁当中，看日月轮转，大风奔流，饱受严寒和烈日侵袭，这仿佛是它们____的宿命。
单选题二次函数y＝x²＋x－2的图像与z轴的交点坐标为（ ）
单选题阅读下列短文，然后根据短文的内容从每小题的四个选择项中选出最佳的一项。B Magic（魔法）often forces us not to believe our own eyes or even appears to be breaking laws of physics or nature! The word "magic" has many different meanings.When a
单选题（ ）
单选题阅读下列短文，然后根据短文的内容从每小题的四个选择项中选出最佳的一项。C It is widely accepted that English is the global language of modern times.About three decades ago, French was recognized as the language of diplomacy（外交），and Germ