OnErrorGot00语句的含义是______。A．忽略错误并执行下一条语句B．取消错误处理C．遇到错误执行定义

What was Jessica fond of reading when she was young？

A．Classics recommended by the school.

B．Classics on which Disney films are based.

C．Stories about murders and poetry.

D．Stories restricted by her parents.

What activities was he involved in when he had his practice in the company？

A whole variety of____________________________.

Which of the following is NOT a recommended safe practice？

A.Securing equipment against slipping or drifting

B.Operating machinery at its recommended speed

C.Repairing loose handles on tools before using

D.Using tools for purposes for which they are not designed

What is the recommended stock of coal？

A．

B．

C．

What is the problem that businesses face when considering environmental issues？

A．Businesses face the problem of producing goods and services that customer needs.

B．Businesses face the problem of lowering costs.

C．Businesses face the problem of making more profits for investors.

D．Businesses face the problem of balancing profits and social responsibility.

What is recommended to combat the "vampire" power？

A．To download a power-management tool.

B．To stop using screensavers, especially photo screensavers.

C．To make good use of a master power strip like the Smart Strip Power Strip.

D．To shut down the computer when not using it.

What is the lounge most recommended？

A．Seafood

B．Beef ribs

C．Cocktails

D．Coffee

A.slightly less than the line frequency

B.the same as the line frequency

C.slightly greater than the line frequency

D.All of the above