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【单选题】
蛋白质分子中氨基酸的排列顺序决定因素是:A.
氨基酸的种类
B.
tRNA反密码
C.
mRNA中核苷酸排列顺序
D.
转肽酶
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举一反三
【简答题】当两人相距在1.5米之内时，即为私人距离。判断对错
【单选题】2 ) _________4_______ You would have done it on a vacation, right? Treat yourself to this, at least for one day! 3 ) Throw a small party . Think about the money you are saving by not going away . You ...
A.
Eat out for every meal!
B.
Go on a day trip to a nearby town, or to a beach ．
C.
But why not remain at home and enjoy a staycation?
D.
If you are on a staycation, you might get calls from work ．
E.
Most of the time it involves dining out more frequently than usual ．
F.
Make sure you all have fun, and when it is over, you feel refreshed ．
G.
The trick is to make sure your friends and coworkers know you are on a staycation ．
【单选题】When you are saving money, it is important to ______.
A.
spend as little as possible
B.
ask your parents to help you
C.
know what you are saving for
D.
have three places to keep the money
【简答题】When you learn to keep a balance between spending and saving, you are in control of your own financial situation, and which will lead you to a successful and productive life despite the twists and tur...
【简答题】三相负载的额定电压等于电源线电压时,应做()形连接,额定电压约等于电源线电压的 0.577 倍时,三相负载应做()形连接。按照这样的连接原则,两种连接方式下,三相负载上通过的电流和获得的功率()。
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