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(多选题)劳动效率可以用单位时间完成的工程数量(即产量定额)或单位工程量的工时消耗量(即工时定额)表示。它除了决定于该工程活动的性质、复杂程度外,还受制约因素包括()(本题2.0分)
A、劳动者的培训和工作熟练程度
B、季节、气候条件
C、实施方案
D、现场平面布置和条件
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(单选题)界面管理首先要保证系统界面之间的()。(本题1.0分)
A、结合程度
B、组织性
C、相容性
D、逻辑关系
A、结合程度
B、组织性
C、相容性
D、逻辑关系
如果a11 a12 a13/a21 a22 a23/a31 a32 a33，则2a11 2a12 2a13/2a21 2a22 2a23/2a31 2a32 2a33（ ）.
A. M B2M. C.6M D.8M
A. M B2M. C.6M D.8M
5.行列式D=111/-111/-1-11().
A.1B.2C.3D.4
A.1B.2C.3D.4
Are you thinking of writing someone a letter? Call instead. It isn.t that expensive, especially when you call during the evening, night, or weekend hours. In fact, you can make a ten-minute call anywhere in the continental United States for just $2.60.
For even greater saving, always dial direct, that is, without an operator.s help. Rates on direct calls are lower after five o.clock in the evening and lowest after eleven o.clock at night. Collect, person-to-person, and pay phone calls require the services of an operator, and they cost more than direct calls.
Need to call out of the country? Now calls to many overseas places may be dialed direct. Check your telephone direction for overseas area codes.
Next time you have good news, or you just want to stay in touch, remember, a phone call means so much more than a letter. This has been a message from Southern Bell Telephone Company.
5. This passage is ______.
得分/总分
A.
an article
B.
a talk
2.00/2.00
C.
a letter
D.
a dialogue
For even greater saving, always dial direct, that is, without an operator.s help. Rates on direct calls are lower after five o.clock in the evening and lowest after eleven o.clock at night. Collect, person-to-person, and pay phone calls require the services of an operator, and they cost more than direct calls.
Need to call out of the country? Now calls to many overseas places may be dialed direct. Check your telephone direction for overseas area codes.
Next time you have good news, or you just want to stay in touch, remember, a phone call means so much more than a letter. This has been a message from Southern Bell Telephone Company.
5. This passage is ______.
得分/总分
A.
an article
B.
a talk
2.00/2.00
C.
a letter
D.
a dialogue
(判断题)间接费是指建筑安装企业为组织施工生产和经营管理等所需的费用，它不易直接进入单位工程造价内，只能采取间接的计算办法摊入造价内（）。(本题3.0分)
A、正确
B、错误
A、正确
B、错误