正确答案: B

216 (

题目：从1，2，3，4，5，6，7这七个数字中任取两个奇数和两个偶数，组成没有重复数字的四位数，其中奇数的个数为

解析：C

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学习资料的答案和解析：

[多选题]Who mentions the transporting of the battery?

M.

[单选题]Nine in ten parents said there were significant differences in their approach to educating their children compared with __ of their parents.

that

[单选题]If our sense of wonder relics totally on the world of make-believe. we will_______.

fail to appreciate the joy in our lives

[单选题]i agreeto his suggestion______theconditionthathedropsall charges.

on

[单选题]在文中①②横线上填入下列语句，衔接最恰当的一项是（ ）金沙江大峡谷旁有一座远近闻名的纳西古城， ① ，是纳西人最原始的聚居地，我们步行了一个多小时，古城 出现在前面。 ② ，上面镌刻这“宝山石头城”五个大字。

①古城建在一块庞大独立的蘑菇状岩石上 ②远远地就能望见那别具一格的拱形城门

[单选题]茄科植物花序常生于叶腋之外，原因是( )。

花轴与茎结合

[单选题]蕨类植物的精子皆为多鞭毛，受精过程离不开水。( )

错误