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【单选题】
反向吸液操作要领是()。A.
吸一排二
B.
吸二排一
C.
吸一排一
D.
吸二排二
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反馈参考答案：
举一反三
【简答题】K的学习与提升策略就是时时处处,但要使“时时处处”有所价值,应该:______
【单选题】Which of the following is not one of the points that the heading of a memo should cover?
A.
the person(s) to who the memo has been sent
B.
the person who wrote the memo
C.
the time when the memo was written
D.
detailed discussion of the problem
【单选题】Which of the following is not one of the points that the heading of a memo should cover?
A.
detailed discussion of the problem
B.
the person who wrote the memo
C.
the time when the memo was written
D.
the person(s) to who the memo has been sent
【单选题】— Can I eat the cake, Mum? — Yes, you can. ______ you must wash your hands first. [ ]
A.
But
B.
So
C.
Or
D.
After
【单选题】You must wash your hands when preparing food, to ______ passing on disease to your family.
A.
fight against
B.
protect against
C.
protest against
D.
guard against
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