危险化学品安全技术
硫化氢作业现场应安装硫化氢报警系统,第一级报警值应设置在( )。
A.安全临界浓度
B.危险临界浓度
C.阈限值
D.临界值
参考答案:C
阅读理解
Lily is from New York , the U.S.A. She is twelve. She is in Shanghai NO.3 Junior High School. She
is in Class Eight, Grade One. Her phone number is 66786019. Dongdong is from Kunming. His English
name is Tom. He is eleven .He is in Class Seven,Grade One. His telephone number is 24524233. They
are not in the same class. They are good friends
阅读短文,选择正确的答案。
1. Lily is from _____ .
A. English
B. China
C. the U.S.A
2. Dongdong is in Class ______ .
A. Six
B. Seven
C. Eight
3. Lily and Dongdong are good_________.
A. students
B. friends
C. teachers
4. Where is Tom from ? He is from________
A. The U.S.A
B. Japan
C. China
5. How old is Lily ? She is ________
A. ten
B. eleven
C. twelve
证见身热不退,朝轻暮重,神识昏荣。似清似昧或时清时昧,时或谵语,舌苔黄腻,脉濡滑而数。其治疗处方是()
A.通关散、玉枢丹、藿香正气散
B.神犀丹、安宫牛黄丸
C.苏合香丸、菖蒲郁金汤
D.苏合香丸、茯苓皮汤