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问题 单项选择题

某工程双代号网络计划如图所示（时间单位：天）。则该计划的关键线路是（）。

A．①-②-③-④-⑤-⑥

B．①-②-③-④-⑥

C．①-③-④-⑥

D．①-③-⑤-⑥

答案

参考答案：C

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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判断题

可控硅导通后，只要控制极开路，可控硅立即关断。
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