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【单选题】
用万用表直流电压档分别测出VD1，VD2和VD3正极与负极对地的电位如图示，VD1，VD2，VD3的状态为（ ）。【图片】A.
VD1，VD2，VD3均正偏
B.
VD1反偏，VD2，VD3正偏
C.
VD1，VD2反偏，VD3正偏
D.
通
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举一反三
【多选题】Tick the true sentences.
A.
Topic sentences can be an opinion.
B.
Topic sentences always use adjectives.
C.
Topic sentences can explain a situation.
D.
Topic sentences can tell you a fact from research.
【判断题】There are four kinds of sentences determined by sentence functions. They are declarative sentences, interrogative sentences, imperative sentences and exclamatory sentences.
A.
正确
B.
错误
【简答题】资本有机构成是研究社会资本再生产的出发点。
【单选题】All the following sentences are conditional sentences EXCEPT
A.
If running a little faster, he will take the first place.
B.
Given another chance, I'll make full use of it.
C.
Should you see him, please give him my regards.
D.
So sudden was the attack that we had no time to escape.
【简答题】某RAM芯片的存储容量是4K×8位,该芯片引脚中地址线有____根,数据线____ 根。
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