例行保养是()小时进行。
A.6
B.10
C.12
参考答案:B
—What do you think will be the future of your new invention?
—I’m sure it will have many different _________ in the industry.
A.applications
B.responsibilities
C.characters
D.Entrances
电力企业、电力调度交易机构报送信息的原则是()。
A.真实
B.及时
C.完整
D.透明