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问题 单项选择题

当电瓶充电机有故障时有何显示（）

A.TRUNIT（变压整流组件）灯亮

B.SPCU组件上的故障灯亮

C.两个电源分配面板（PDP）前部或后部的故障灯亮

D.ELEC灯亮

答案

参考答案：D

单项选择题

(二)根据下面一段对话内容，从对话右边方框内的选项中选出能填入空白处的最佳选项，其中两项为多余选项。 A: Oh, hi, Tess! I’m sorry. I’m thinking about something. B: ____16____ A: I am. I have a chance to go on a tour. B: A tour What kind of tour A: A music tour. ____17____ B: Wow! That’s great. They are pretty famous. A: ____18____ B: So you’re going to do it A: I don’t know. ____19____ B: It sure would! Where will the tour go A: ____20____ B: How long is the tour A: Four months. B: OK, wish you a happy travel! A: Thank you!

A．This tour is the chance of lifetime.
B．It goes all over North America and South America.
C．It looks like you’re dreaming about something.
D．You’ll have to quit school and your job at the store.
E．My agent wants me to go on a tour with Art’s Jazz Band.
F．Have you told anyone about this yet
G．It would be a great opportunity!
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单项选择题

阳碳离子能自动（），伯碳离子自动转仲碳，仲碳转化为叔碳，趋向稳定。

A.异构化

B.芳构化

C.烷基化
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