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问题 填空题

若由ey=xy确定y是x的函数，则y’=（）．

答案

参考答案：

解析：

本题考查了隐函数的一阶导数的知识点．

在ey=xy两边对x求导(注意y是x的函数)，有ey·y’=y+xy’，所以．

单项选择题 A1/A2型题

输血引起的枸橼酸中毒往往与哪类疾病有关 （）

A.心脏病

B.肺病

C.肝病

D.肾病

E.脾脏疾病
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听力题

动词填空：用括号内所给动词的适当形式填空，并将答案写在答题卡标有题号的横线处（本大题共8小题，每小题1分，共8分）

小题1:The old man exercises every day __________(improve) his health.

小题2:The firemen __________(control) the fire, so all of you are out of danger now.

小题3:The Great Wall as well as the Palace Museum _______ (attract) lots of tourists from home and abroad every year.

小题4:Please stop talking, guys. I can’t hear what the youth worker               (explain).

小题5:It was reported that the plane to Beijing               (fly) back to Tokyo by the time of 2:30 yesterday afternoon because of the rainstorm.

小题6:If Steve finishes the job in time, he ____________ (allow) to have a two-week off.

小题7:—Did you notice anybody enter the building just now?

—Sorry, I          (cut) down the tree in the garden.

小题8:The three boy students Miss White paid special attention to           (make) great progress at last.
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