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【单选题】
光照直接影响三七的光合作用,同样在立体栽培条件下,三七的净光合速率表现为( )。
A.
上层>中层>下层
B.
中层>下层>上层
C.
上层>下层>中层
D.
下层>中层>上层
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参考答案:
举一反三
【简答题】3D printing is becoming more and more popular. We are now able to print things we need very quickly and easily using 3D printers .But can you imagine print food? Some scientists are trying to change t...
【判断题】办理境外离境手续时,通常都是先办理边检海关,再办理登机手续。( )
A.
正确
B.
错误
【单选题】We do hope that one day the Chinese language will become a __________ language, that is, everyone in the world will communicate in it.
A.
common
B.
universal
C.
popular
D.
sensitive
【多选题】( )是图灵机器人三大核心功能
A.
智能对话
B.
搜索
C.
知识库
D.
技能服务
【单选题】目前市场上出了较多的双频、三频NAVTEX接收机。中远公司为自己船舶选择三频NAVTEX接收机时可能涉及的频率是()。
A.
518kHz、486kHz和4209kHz
B.
518kHz、490kHz和424kHz
C.
518kHz、490kHz和486kHz
D.
518kHz、490kHz和4209.5kHz
【单选题】一重为G的直杆置于圆弧形器皿中,并且和器皿的接触为光滑接触,其接触点A、B处的约束力方向应当如图___所画为正确。
A.
图(a)
B.
图(b)
C.
图(c)
D.
图(d)
【单选题】图灵机器人API中,异常返回码4000的含义是
A.
暂不支持该功能
B.
请求参数格式错误
C.
无功能权限
D.
上传格式错误
【简答题】Everyone wants to be successful. B ut failure is a common( 普通的 ) thing for us to meet with. 1 , sometimes we fail the exams, sometimes in the sports meet, others 2 but we fail. So 3 everybody meets wi...
【简答题】III. 完形填空。 Everyone wants to be successful. But failure is a common(普通的) thing for us to meet with. 16 , sometimes we fail the exams, sometimes in the sports meet, others 17 but we fail. So 18 ...
【简答题】Complete the sentences with words given below, sure that each word is used in the right form: commit stride impersonality minimum economical trigger enrollment original...
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