____________ carvings were donated to the museum.
A. Original twenty wood African
B. Twenty original wood African
C. African twenty original wood
D. Twenty original African wood
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It was ___________ of you not to play the piano while I was having a sleep.
A. considerate
B. conservative
C. considerable
D. consistent
She is so __________ that she cried for days when her pet died.
A. sensitive
B. sensible
C. touched
D. impressive
实现电动机正反转只需要调换三相电源中的其中两相相线。
A. 对
B. 错
当使能输入端接通时，置位指令接通。
A. 对
B. 错
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