列举3种生活、生产中常见的盐,写出其主要成分的化学式,并简要写出该物质在生产、生

题型:问答题

问题:

列举3种生活、生产中常见的盐,写出其主要成分的化学式,并简要写出该物质在生产、生活中的某种用途.

序 号物 质化 学 式用   途
硫酸铜CuSO4     农业上用于配制波尔多液
(1)__________________
(2)__________________
(3)__________________

考点:盐的用途
题型:问答题

阅读短文,判断正(T)误(F)。

      Today is Saturday. I have no classes. I want to go shopping with my mother. I want to buy a new skirt.

In the shop I see many beautiful skirts. I like the pink one. But it is so expensive. I can't buy it. At last I buy

a white skirt. It fits me well.

( ) 1. Today is Sunday.

( ) 2. I want to buy a shirt.

( ) 3. I like pink.

( ) 4. At last I buy a pink skirt.

( ) 5. The white skirt fits me well.

题型:问答题

心房纤颤时,左心房内的球形血栓是()。

A.混合性血栓

B.白色血栓

C.红色血栓

D.透明血栓

E.延续性血栓

题型:问答题

白斑癌变率为()

A.20%

B.3%~5%

C.1%

D.10%~12%

E.0.1%

题型:问答题

草块铺好后,及时喷水养护()左右即可成型。

A、5天

B、8天

C、10天

D、14天

题型:问答题

何时后缘襟翼卸载系统工作()

A.在高高度,襟翼手柄在25

B.在高空速,襟翼手柄在25

C.在高空速,襟翼手柄在30或40

D.在高高度,襟翼手柄在25,30,或40

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