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【判断题】
下图(a)所示二端电路的端口特性是u=10-5i 图(b)所示二端电路的端口特性是u=10+5i 因为伏安关系式不同,所以判断他们之间不能相互等效。A.
正确
B.
错误
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反馈参考答案：
举一反三
【简答题】根据全面和谐发展理论,在学前儿童科学教育活动中,不仅要重视儿童认知的发展,还必须要注意儿童( )的发展。
【单选题】Brown said he was by no means annoyed；________he was glad to be able to make himself clearly understood. (2012·浙江，14)
A.
all in all
B.
for one thing
C.
on the contrary
D.
by the way
【简答题】在片外扩展一片2716程序存储器芯片要( )地址线。
【单选题】Brown said he was by no means annoyed; ___________ he was glad to be able to make himself clearly understood.
A.
all in all
B.
on the other hand
C.
on the contrary
D.
in many ways.
【单选题】He was glad______for his well-done homework several times.
A.
praised
B.
to be praised
C.
to praise
D.
to have been praised
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