在工业生产过程中,毒物最主要是通过( )进入人体的。A.呼吸道 B.消化道 C.皮

题型:单项选择题

问题:

在工业生产过程中,毒物最主要是通过( )进入人体的。

A.呼吸道

B.消化道

C.皮肤

D.指甲

考点:安全工程师安全生产技术安全生产技术101
题型:单项选择题
Jack ___1___in Canada. His father___2___a big shop and his mother is a teacher. He is six years old and ___3___to go to school this year. It’s ___4___far from their home, and his father drives a car to take him to school every day. So he is never late___5___ class and his teachers like him very much. .
It’s Monday today. Miss White is teaching them to count numbers from one ___6___ten. Jack studies very hard. Soon he can count them. Miss White is happy and asks “How ___7___ people are there in your family, Jack?”
Jack___8___ up and says “Two, Miss White.”
“Who are ___9___?”
“My father and my mother.”  Says Jack.
“Oh?” Miss White says “There are three people in your family, not two.”
“But now I’m not at home. I’m at ___10___, you know!”
小题1:A live      B. lives       C. is live      D. living
小题2:
A.hasB.haveC.havingD.is
小题3:
A.beginB.beginningC.beginsD.began
小题4:
A.littleB.a littleC.fewD.a few
小题5:
A.toB.forC.atD.in
小题6:
A.toB.forC.atD.in
小题7:
A.muchB.manyC.moreD.too much
小题8:
A.standB.studentC.standsD.studies
小题9:
A.themB.theirC.theyD.theirs
小题10:
A.homeB.schoolC.noonD.the school
题型:单项选择题

湿肺(transienttachypnea)

题型:单项选择题

在液压电磁换向阀符号图中,表示压力油口的字母为P,表示泄油口的字母为L。表示回油口的字母是()

A、L

B、P

C、T

D、A

E、B

题型:单项选择题

正常人血液在血管内不凝固的原因有

A.血管内膜光滑完整

B.凝血酶原无活性

C.有抗凝物质存在

D.纤维蛋白溶解系统起作用

E.血流速度慢

题型:单项选择题

C220版本升级中在BOOT模式下使用()命令重启设备进行正常模式。

A.ACTive

B.dO

C.rU

D.gO

更多题库