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【简答题】
细胞减数分裂过程中,____期发生同源染色体的联会配对;____期染色体间发生遗传物质交换。
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皮皮学刷刷变学霸
举一反三
【单选题】Their top speed is 300 km/h, which is planned to increase ______________ 350 km/h in the near future.
A.
by
B.
in
C.
to
D.
from
【简答题】Their top speed is 300 km/h, ______________ is planned to increase to 350 km/h in the near future.
【单选题】下列反应达平衡时，2SO2(g) + O2(g)【图片】2SO3(g)，保持体积不变，加入惰性气体He，使总压力增加一倍，则
A.
平衡向左移动
B.
平衡不移动
C.
平衡向右移动
D.
条件不充足，不能判断
【简答题】Their top speed ______________ 300 km/h, which is planned to increase to 350 km/h in the near future.
【简答题】Their top speed is 300 km/h, which is planned to increase ______________ 350 km/h in the near future.
【单选题】Their top speed ______________ 300 km/h, which is planned to increase to 350 km/h in the near future.
A.
am
B.
is
C.
are
D.
be
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