【简答题】光栅常数为2um,缝宽为1um,总宽为6厘米的光栅,当光垂直入射于栅面时,要分辨500纳米和500.01纳米两条谱线,应选用第____级光谱
【判断题】在没有系统误差的前提条件下,总体平均值就是真实值
【单选题】--- I need to advertise for a roommate for next term. --- _____? Mary is interested.
【单选题】Why does the professor say this:
A.
She thinks that the spelling of the term is not important.
B.
She assumes that the students know how to spell the term.
C.
She knows that the term can be found in the textbook.
D.
She does not want to spend time explaining the term.
【简答题】The reason why the ytical and explanatory value of the term globalization was largely emptied is that ______.
【判断题】在没有系统误差的前提下,总体平均值就是真实值。( )
【单选题】Man: Hurry, there is a bus coming. Woman: Why run? There will be another one in two or three minutes. Question: What does the woman mean?
A.
The next bus is coming soon.
B.
The bus will wait a few minutes at the stop.
C.
There are only two or three passengers waiting for the bus.
D.
They can catch this bus without running.
【判断题】取得执业资格的人员,申请在新设立房地产估价机构、分支机构执业的,应当在申报房地产估价机构资质或者分支机构备案的同时,办理注册手续。( )
【判断题】在没有系统误差的前提下,总体平均值就是真值( )
【多选题】在绿篱机操作过程中易出现的错误有哪些
C.
在启动机器时,没有用手按紧机器,两手没有配合好