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【单选题】
在滴定分析法测定中出现的下列情况,哪种导致系统误差( )。A.
滴定时有液滴溅出
B.
砝码未经校正
C.
滴定管读数读错
D.
试样未经混匀
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皮皮学刷刷变学霸
举一反三
【单选题】— What do you think of our new school? — ___________
A.
It’s very well.
B.
It’s very good.
C.
No. I don’t like it at all.
D.
The same to you.
【简答题】阅读理解。 This is our classroom. It's very big. It has very big windows. There are 45 students in our class. Everyone has a desk and a chair. They are all new. We look after them very well. In our classro...
【简答题】There’s a big supermarket called Jiahui in our city. It’s very 46 to find. It is in the center of our city. It’s 47 the bus stop and it’s also very easy to take a taxi, too. The supermarket is big 48 ...
【单选题】-This picture is very nice, but I think it's too small for our room. -( ).
A.
I agree. Let's look for a bigger one
B.
You're quite right. What a good idea
C.
I agree. Our room is very small
D.
I agree. Let's look for a nicer one
【简答题】钢的热处理是通过钢在固态下的 、 和 ,改变钢的内部组织,从而改变其 的工艺方法。
【单选题】There's no denying that our boss is a businessman who is very ______ and mercenary.
A.
keen
B.
calculating
C.
acute
D.
astute
【简答题】At the very top of Maslow's hierarchy of five needs is our human need for “safety”.()
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