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【单选题】
细胞周期分为四个阶段，其正确的次序为A.
G1→M→G2→S→G1
B.
G1→G2→S→M→G1
C.
G1→S→G2→M→G1
D.
S→G1→G2→M→S
E.
S→G1→M→G2→S
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【单选题】________ says that making it easier for illegal aliens' children to go to college in the U.S. will actually encourage more people to enter the country illegally.
A.
Joshua Hoyt
B.
Edward Acevedo
C.
Dan Stein
D.
Orin Hatch
【单选题】In the U. S., making a circle with one’s thumb and index finger while extending the others is emblematic of the word “OK”; in Japan and Korea it signifies______.
A.
hostility
B.
money
C.
something obscene
D.
“I will kill you.”
【简答题】As prices and building costs keep rising, the do-it-yourself(DIY) trend(趋势) in the U.S. continues to grow. “We needed furniture for our living room,” says John Ross, “And we just didn’t have enough mo...
【单选题】As prices and building costs keep rising, the 'do-it-yourself'(DIY) trend(趋势)in the U.S. continues to grow. 'We needed furniture(家具)for our living room,' says John Ross, 'and we just didn't have enoug...
A.
find it hard to pay for what they need
B.
have to learn to make their own furniture
C.
take DIY courses run by the government
D.
seldom go to a department store to buy things
【简答题】As prices and building costs keep rising, the “do-it-yourself” (DIY) trend in the U.S. continues to grow. “We needed furniture for our living room,” says John Ross, “and we just didn’t have enough mon...
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