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【单选题】
在体外受精前，要对精子进行获能处理。对于啮齿动物、家兔和猪等动物的精子，一般放入下列哪项溶液中处理（）A.
获能液
B.
肝素溶液
C.
血清
D.
钙离子载体A23187溶液
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反馈参考答案：
举一反三
【多选题】Destination We would like to go to Easter Island. It is very 1) , very 2) from other places. Means of transportation We are going to travel there by 3) . Duration of the trip The trip is going to take...
A.
isolated
B.
far
C.
plane
D.
three months
E.
culture
F.
way of life
G.
speak to
H.
find out
I.
history
J.
dreams
【简答题】I think again, er, stay true to yourself; er, be aware of the market you ____1____ into, but still build on your ____2____ ; don’t complicate it, in that sense, but still find this kind of ____3____ o...
【单选题】听力原文： This is your local weather update with meteorologist Chris Lee. We can look forward to a beautiful evening, with warm temperatures and a lovely sunset. Sunset will occur at 8:30, and the beach i...
A.
5:00.
B.
5:45.
C.
8:00.
D.
8:30.
【单选题】Ladies and gentlemen, this is the Captain speaking. We will be landing at Bangkok International Airport in 20 minutes. Our flying altitude is 7000 feet. The local time is 9:45 p.m. and the ground temp...
A.
起飞广播
B.
餐前广播
C.
经过强气流广播
D.
降落广播
【单选题】We can ______ the local time of Chicago is December 4 5pm. This is the right time for us to check in at a hotel.
A.
work on
B.
work out
C.
work at
D.
spend on
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