单项选择题

It is commonly believed that the more complicated animals developed from the simpler ones.

A．人们认为，复杂的动物是由比较简单的动物发展而来的。
B．人们普遍认为，较高级的动物是由比较低级的动物进化而来的。
C．人们一般认为，动物都是从简单到复杂转变而来的。
D．它被相信，动物的变化都是从麻烦到简单。
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单项选择题
The president said in the telephone that he would not attend the meeting himself, but his secretary would come instead.
A．院长打来电话说，他不能亲自来参加会议了，但他让秘书代替他参加。
B．院长在电话里说，他不能来参加会议了，但他将让秘书代他来参加。
　
C．院长用电话形式通知他的秘书参加他不愿意参加的会议。
D．院长通过电话说，让他的秘书代替参加他不能出席的会议。
单项选择题
David thinks he might retire early because ______.
A．people have to be young to write computer programs
B．he wants to stop working when he is a millionaire
C．he thinks his firm might go bankrupt
D．he thinks computer games might not always sell so well
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