题目内容

Underline the object clauses in the following sentences.1. Last year I decided I'd like to study psychology.2. I was about to give up when a friend suggestedthat I try a MOOC.3. At first, I had no idea what they were talking about, but they explained that a MOOC is a Massive Open Online Course, which is designed so that anyone can follow it, regardless of age, location or education — all you need is an Internet connection. You can search for hundreds of different subjects, and can usually watch a short introduction video to get an idea ofwhat the course is about.4. Most MOOCs have online forums too, where students can discusswhat they are learning.5. Research shows that 90% of students who start a MOOC do not finish it, and I can see why.

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某灯泡上标有“220V 40W”字样,说明灯泡的额定电压为( )V。

A. 380
B. 260
C. 220
D. 40

甲灯“220V 40W”,乙灯“220V 60W”,正常工作时哪个更亮。( )

A. 甲
B. 乙
C. 一样亮
D. 无法判断

用万用表检测灯泡电阻,若指针指向∞,则说明该灯( )

A. 内部断路
B. 内部短路
C. 正常
D. 通电就好了

教室里的照明灯,有1只坏了,其他的还正常亮,说明各个灯是串联的。

A. 对
B. 错

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