We climbed a tree, and all of a sudden it _______ to us that we were rather big to be up i...

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【单选题】

We climbed a tree, and all of a sudden it _______ to us that we were rather big to be up in a tree. [ ]

struck

lighted

occurred

came

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举一反三

【判断题】当非手性的分子经反应得到的产物是手性分子,则必定是外消旋体。

正确

错误

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【单选题】So confused _____ that he didn’t know how to start his lecture. A. since he became B. would he become C. that he became D. did he become

since he became

would he become

that he became

did he become

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【单选题】The little boy is crying at first, but at last, he become ______.

sad

good

happy

happily

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【单选题】When did he become President of the United States?

1809.

1832.

1860.

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【多选题】全站仪能同时显示和记录( )。

水平角、垂直角

水平距离、斜距

高差

点的坐标数值

方位角

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【判断题】样本空间(Ω)—全体样本点构成的集合. 样本点(ω)—随机试验的每一个可能结果. 随机事件—Ω的子集,常用A、B、C...表示.

正确

错误

查看完整题目与答案

【判断题】当非手性的分子经反应得到的产物是手性分子,则必定是外消旋体。

正确

错误

查看完整题目与答案

【判断题】随机试验的每一个可能结果ABC

正确

错误

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【多选题】随机试验的每一个可能结果,称为随机事件,根据事件能不能再分可以把事件分为( )。

基本事件

复合事件

必然事件

不可能事件

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【单选题】—_____ did he become a football player? —He became a football player in 1990. [ ]

How long

What time

How

When

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相关题目：

【判断题】当非手性的分子经反应得到的产物是手性分子,则必定是外消旋体。

正确

错误

查看完整题目与答案

【单选题】So confused _____ that he didn’t know how to start his lecture. A. since he became B. would he become C. that he became D. did he become

查看完整题目与答案

【单选题】The little boy is crying at first, but at last, he become ______.

查看完整题目与答案

【单选题】When did he become President of the United States?

查看完整题目与答案

查看完整题目与答案

【判断题】样本空间(Ω)—全体样本点构成的集合. 样本点(ω)—随机试验的每一个可能结果. 随机事件—Ω的子集,常用A、B、C...表示.

正确

错误

查看完整题目与答案

【判断题】当非手性的分子经反应得到的产物是手性分子,则必定是外消旋体。

查看完整题目与答案

查看完整题目与答案

【多选题】随机试验的每一个可能结果,称为随机事件,根据事件能不能再分可以把事件分为( )。

查看完整题目与答案

【单选题】—_____ did he become a football player? —He became a football player in 1990. [ ]

查看完整题目与答案

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