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【判断题】
晶闸管可控整流电路中,通过改变控制角α的大小,可以控制输出整流电压的大小。
A.
正确
B.
错误
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【单选题】●在一棵度为3的树中,若有2个度为3的结点,有1个度为2的结点,则有 (33) 个度为0的结点。 (33)
A.
8
B.
6
C.
3
D.
2
【简答题】跨境电商存在的问题?
【单选题】下列哪个不属于当前跨境电商存在的问题?( )
A.
同质化
B.
跨境物流滞后
C.
品牌建设相当成熟
D.
通关壁垒
【单选题】Question 6 is based on the news report you have just heard.
A.
He has lots of fans on Facebook.
B.
He has rich experience in flying.
C.
He often suffers from toothaches.
D.
He has learned to pull teeth from a video.
【单选题】Question 6 is based on the news report you have just heard.
A.
Engineering problems.
B.
The air pollution is produced.
C.
inadequate funding.
D.
The opposition from the military.
【单选题】在一棵度为3的树中,若有2个度为3的结点,有1个度为2的结点,则有(33)个度为0的结点。
A.
8
B.
6
C.
3
D.
2
【单选题】Question 6 is based on the news report you have just heard. 6 .
A.
Zimbabweans stayed away from voting.
B.
Zimbabweans were enthusiastic about voting.
C.
Only a f ew Z imbabweans t urn ed up to vote.
D.
Zimbabweans believed that Mugabe would win.
【单选题】诗经是谁编订的?
A.
孔子
B.
孟子
C.
老子
D.
鬼谷子
【简答题】乙酰辅酶 A 可进入哪些代谢途径:请列出。
【单选题】下列选项中,不属于清末“百日维新”中的教育改革措施的是( )。
A.
颁布近代学制
B.
废除八股考试
C.
设立京师大学堂
D.
书院改学堂
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