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【单选题】
未经许可和登记,擅自从事职业中介活动的,由劳动行政部门或者其他主管部门依法予以关闭;有违法所得的,没收违法所得,并处一万元以上( )以下的罚款。
A.
三万元
B.
四万元
C.
五万元
D.
六万元
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【判断题】在 配线 子系统中 , 缆线既可以用对绞电缆也可以用光缆。
A.
正确
B.
错误
【单选题】Grey whales have long been _______in the north Atlantic and hunting was an important causes for that.
A.
deprived
B.
extinct
C.
detained
D.
extinguished
【判断题】在配线子系统中,线缆既可以用双绞线电缆也可以用光缆。
A.
正确
B.
错误
【简答题】热轧钢筋是低碳钢或普通低合金钢在______轧制而成。按照其强度的高低,分为______、______、______等几种,在图纸与计算书中分别用符号______、______及______表示,其中______钢筋为光圆钢筋,其余的为带肋钢筋。
【判断题】在配线子系统中,缆线既可以用正确绞电缆也可以用光缆。
A.
正确
B.
错误
【单选题】Grey whales have long been ________ in the north Atlantic and hunting was an important cause for that.
A.
extincted
B.
extinguished
C.
detained
D.
deprived
【简答题】(16分)运用化学反应原理研究NH 3 的性质具有重要意义。请回答下列问题: (1)已知:①4NH 3 (g)+3O 2 (g)===2N 2 (g)+6H 2 O(g) H=-1266.8kJ·mol -1 ②N 2 (g)+O 2 (g)===2NO(g) H=180.5kJ·mol -1 写出氨高温催化氧化的热化学方程式 。 (2)氨气、空气可以构成燃料电池,其电池反应原理为4NH 3 +3...
【单选题】Grey whales have long been_____ in the north Atlantic and hunting was an important cause for that.
A.
deprived
B.
detained
C.
extinct
D.
extinguished
【单选题】Many species of whales will not breed unless ______.
A.
they are in the same group for a long term
B.
they are isolated from other species
C.
they are in the company of many other whales
D.
there are enough genes available
【单选题】Grey whales have long been ________ in the north Atlantic and hunting was an important cause for that.
A.
extinct
B.
extinguished
C.
detained
D.
deprived
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