单项选择题

衡量网络上传输速率的单位是bps，其含义是： A.
数据每秒传送多少公里 B.
数据每秒传送多少米 C.
每秒传送多少个二进制位 D.
每秒传送多少个字节

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单项选择题

Which choice in the following descriptions regarding research question is right?
A、Research question could be answered with a simple “yes” or “no”.
B、Research question should be clear, focused and concise.
C、Research question could center around accepted facts.
D、---

不定项选择

组培小苗移栽的基质湿度越大越利于小苗成活。

A．正确
B．错误