在灭蝇的化学施药中,下列哪类表面适合可湿性粉剂()
A、石灰墙
B、瓷砖面
C、彩钢板墙
D、三合板
参考答案:A
根据短文内容,判断对"√" "×"。
A Letter
Dear Mother,
I'm writing to you from our hotel at Golden Beach. Jim and I are on vacation with the children for
a week, we aren't happy. We are having some problems.
The weather isn't good. It's cold and cloudy. Now I'm looking out of the window and it's raining
cats and dogs.
Tony and Tommy aren't very happy. They are having a terrible time. They
can' t play outside. They are sitting on the bed. playing cards and watching TV.
Jim is at the doctor's office . He has got a headache.
We are going to be back on Thursday.
See you soon.
Love,
Ethel
( )1. Ethel and Jim are on their vacation.
( )2. The children are very happy.
( )3. There are many cats and dogs out of the window.
( )4. Tom and Tommy are playing outside.
( )5. Ethel has got a headache.
供应商重要性分类中,Ⅰ类供应商是指( )。
A.提供零部件产品质量好,对企业的产品质量没有影响
B.对企业的产品质量有非常重要的影响
C.对企业的产品质量有重要的影响
D.对企业的产品质量有一般的影响