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【判断题】
主运动是使工件切削层材料相继投入切削,从而加工出完整表面所需的运动。A.
正确
B.
错误
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举一反三
【简答题】管家基因(housekeeping gene)
【单选题】We are interested in the desk lamps you () in the May issue of “Good Housekeeping”.
A.
advertising
B.
being advertised
C.
advertised
D.
have advertised
【简答题】How often is the housekeeping provided?
【单选题】Housekeeping genes
A.
Produce antibodies
B.
Constantly operate for cellular activity
C.
Form hormones
D.
Function only at the time of reproduction
E.
Express at very low rate
【多选题】What's the rule for housekeeping before entering a room?
A.
Knock three times with three knocks each time.
B.
Each time after the knock, she may say, ”Housekeeping, may I come in?”
C.
Only press the doorbell before entering.
D.
Knock two times with three knocks each time.
【简答题】housekeeping
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