can be absorbed through the skin
causes irreversible damage to eye tissue
is a very unstable product
All of the above
第1题:
A major indicator of a country's economic growth is the change in its gross national product, or GNP, which is the total value of goods and services produced by an economic system in a year.()
此题为判断题(对,错)。
第2题:
I was worried about this out—dated equipment.()
A、 You’ re so lucky.
B、 It’s too id.
C、 Yeah, it may bring a health hazard.
第3题:
A、by
B、to
C、with
D、in
第4题:
You are carrying cargoes of crotonaldehyde,phosphoric acid,and morpholine on your multiple-product tanker. Which of the following statements is TRUE?
A.Each of the cargoes must be segregated from the other by at least two barriers
B.The minimum protective clothing required for taking samples of phosphoric acid is goggles or a face shield
C.Aluminum,copper,and zinc are prohibited in all valve parts in contact with these cargoes
D.The required warning sign must have the legend "cancer hazard" added to it
第5题:
第6题:
149 A program can best be described as:
A. A grouping of related activities which last two years or more
B. The first major subdivision of a project
C. A grouping of projects, similar in nature, which support a product or product line and have no definable end point
D. A product line
E. Another name for a project
第7题:
according to the text, which of the following is not a dysfunction caused by drug abuse?
A. There is a strong association between drug use and crime.
B. Drug abuse is a major cause of unemployment.
C. There are great economic losses because of drug abuse.
D. Drug dependence takes a significant toll in terms of personal health and safety. .
第8题:
A program can best be described as:
AA grouping of related activities which last two years or more
BThe first major subdivision of a project
CA grouping of projects, similar in nature, which support a product or product line and have no definable end point
DA product line
EAnother name for a project
第9题:
A major health hazard of the product tert-butylamine is that it ______.
A.can be absorbed through the skin
B.causes irreversible damage to eye tissue
C.is a very unstable product
D.All of the above
第10题: