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问题 填空题

关于x的两个方程5x-3=4x与ax-a=10的解相同，则a=______．

答案

解方程5x-3=4x，

得x=3，

把x=3代入ax-a=10，

得3a-a=10，

解得a=5．

故填：5．

完形填空

As time went by, he began making films. He grew more and more popular as his charming character, the little tramp, became known _小题1:_____________ the world. The tramp, a poor, homeless man with a ___小题2:__________, wore large trousers, ____小题3:________ shoes and a small round black hat. He walked around stiffly carrying a walking stick. This character was a social ___小题4:________ but was loved for his __小题5:___________ and determination to overcome all difficulties.

The first person to arrive was Tony Garcia from Colombia, closely followed by Julia Smith from Britain. After I met them and then ___小题6:________ them to each other, I was very surprised. Tony___小题7:_______ Julia, touched her shoulder and kissed her on the cheek! She stepped back ____小题8:________ surprised and put up her hands, as if in___小题9:________. I guessed that there was probably a major ___小题10:____________.
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单项选择题

IL-2的产生细胞主要是

A．B细胞

B．NK细胞

C．中性粒细胞

D．活化T细胞

E．单核-巨噬细胞
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