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【判断题】
菌落总数可以作为食品清洁状态的标志。A.
正确
B.
错误
拍照语音搜题，微信中搜索"皮皮学"使用
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】The author suggests that sex education classes
A.
are a major cause of casual, unprotected sex.
B.
should include the role of sex in a meaningful relationship.
C.
should not include the mechanics of fertilization and birth control.
D.
have taken over a role that rightfully belongs to parents.
【简答题】刚性双原子分子的理想气体在等压下膨胀所作的功为W,则传递给气体的热量为__________W.(填:分式数字)
【简答题】刚性双原子分子的理想气体在等压下膨胀所作的功为 10J ,则传递给气体的热量为 _____ J 。
【简答题】刚性双原子分子的理想气体在等压下膨胀所作的功为 W ,则传递给气体的热 量为 __________ .
【单选题】All workers, regardless of their sex and education, are required to _____ at the age of
A.
resign
B.
retire
C.
regain
D.
retain
【简答题】DNA所处介质的离子强度越低 ,熔解温度越 ________ 。
【单选题】The concept of universal elementary education, regardless of sex, had been born, but it was still in the ________ of the single-sex school.
A.
realm
B.
terrain
C.
plateau
D.
latitude
【单选题】Sex education is a sensitive area for some parents, and thus it should remain _________.
A.
random
B.
previous
C.
optional
D.
vital
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