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【单选题】
我国围产期是指A.
胎龄满28出生后足28天
B.
胎龄满28出生后足7天
C.
胎龄满28出生后不足7天
D.
胎龄满20出生后足28天
E.
胎龄满28出生后不足28天
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反馈参考答案：
举一反三
【单选题】______ you a president or an ordinary person, you will be punished if you commit a crime.
A.
May
B.
However
C.
Are
D.
Be
【单选题】You re the person you are, so it makes sense to be that person rather than someone______.
A.
elsewhere
B.
otherwise
C.
else
D.
other
【单选题】Who will be the person you can relate to?
A.
your superior
B.
the workmate next to you
C.
the person who is from the same shool with you
D.
the person who come the company with you
【单选题】If you go to sleep on your back, what kind of person are you?
A.
An open person.
B.
Accept new things easily.
C.
Like to make people sad.
D.
Both A and B
【多选题】下列关于混合叙述正确的是
A.
数量差异悬殊，组分比例相差过大时，则难以混合均匀
B.
倍散一般采用配研法制备
C.
若密度差异较大时，应将密度大者先放入混合容器中，再放入密度小者
D.
有的药物粉末对混合器械具吸附性，一般应将量大且不易吸附的药粉或辅料垫底，量少且易吸附者后加入
E.
散剂中若含有形成低共溶混合物组分，应尽量避免
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