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【单选题】
下列哪种生物制品不能用于人工被动免疫A.
抗毒素
B.
结核菌素
C.
丙种球蛋白
D.
抗病毒血清
E.
转移因子
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举一反三
【单选题】A vessel is engaged in fishing when _______.
A.
her gear extends more than 100 meters from the vessel
B.
she is using any type of gear, other than lines
C.
she is using fishing apparatus which restricts her maneuverability
D.
she has any fishing gear on board
【单选题】–Do you want to go hiking with me this weekend? --I’d love to. But I have to ________ my little brother at home.
A.
babysit
B.
look over
C.
look at
D.
take care
【简答题】ーここの焼き鳥は高いですね。ほかのお店はいくらぐらいですか。 -だいたい1本150円 180円です。 Aや Bと Cか Dまた
【单选题】How nice it _______ if I _______ an elder brother like you!
A.
was; had
B.
would be; had had
C.
would have been; had
D.
would be; had
【单选题】某一混悬剂50ml置刻度量筒中，起始高度为400px，2小时后沉降面高度为300px，3小时后沉降面高度为240px，则其沉降体积比为：
A.
50%
B.
60%
C.
75%
D.
40%
【单选题】某一混悬剂50ml置刻度量筒中,起始高度为16cm,2小时后沉降面高度为12cm,3小时后沉降面高度为9.6cm,则其沉降体积比为:
A.
50%
B.
60%
C.
75%
D.
40%
【单选题】Researchers have established that when people are mentally engaged, biochemical changes occur in the brain that allow it to act more effectively areas such as attention and memory. This is true regard...
A.
whose minds are alert and receptive
B.
who are highly intelligent
C.
who can remember large amounts of information
D.
who are good at recognizing different sounds
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