题目内容

- _____it was!- Yes, I think so. The young man came riding full speed down the road on his bicycle.

A. How dangerous the scene
B. How a dangerous scene
C. What a dangerous scene
D. What dangerous a scene

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____ to travel by boat on a hot summer night!

A. So pleasant
B. How pleasant it is!
C. Such a pleasant
D. How pleasant is it

____ good time they are having at the party now!

A. What
B. What a
C. How
D. How a

______ progress you have made!

A. What great
B. What a great
C. How great
D. How great a

用EDTA标准溶液滴定下列离子时,能采用直接滴定方式的是

A. SO42-
B. Al3+
C. K+
D. Ca2+

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