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【单选题】
当细胞进入有丝分裂时，核仁将发生什么变化A.
变小直至消失
B.
变大
C.
变小但不会消失
D.
不发生变化
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举一反三
【简答题】关于砌体的抗压强度，下列哪种说法不正确?（ ）
【单选题】Generally speaking, prices of daily goods ______ through the Internet are lower than store prices．
A.
to buy
B.
are bought
C.
buying
D.
bought
【单选题】Generally speaking，prices of daily goods through the Internet are lower than store prices.
A.
bought
B.
are bought
C.
buying
D.
to buy
【单选题】一质点沿半径为 R=0.1m 的圆周运动,其角位移θ可用下式表示: θ =2+4t 2 2 (SI) .当 切向加速度大小恰为总加速度 大小的一半时, ,其角位移 θ =
A.
π/6
B.
π/3
C.
2.87 rad
D.
3.73 rad
【简答题】Rising prices are per______ as a threat to living standards, so that the faster prices are increasing, the more likely are workers to join a union in order to maintain their standards of living.
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