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【简答题】
All the preparations for the task ______, and we are ready to start. A) completed                        B) complete C) had been completed                D) have been completed
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【简答题】化学需氧量(COD)的测定,是量度水体受还原性物质(主要是有机物)污染程度的综合性指标。对于地表水、饮用水等常采用高锰酸钾法测定COD即高锰酸盐指数。取某湖水100mL加H2SO4后,加10.00mL(V1)0.00200mol.L-1KMnO4标液,立即加热煮沸10min,冷却后又加入10.00mL(V)0.00500mol.L-1。Na2C2O4标液,充分摇动,用同上浓度KMnO4标液返滴定过...
【判断题】高锰酸盐指数和 COD 都是表示水中还原性污染物的综合指标,没什么区别。
A.
正确
B.
错误
【单选题】一幅分辨率为800×600的真彩色(32位)静态图像,其存储容量为( )。
A.
1875b
B.
1875B
C.
1875MB
D.
1875KB
【判断题】Semantics can be simply defined as the scientific study of meaning and it can be studied from either a linguistic or a logical perspective.
A.
正确
B.
错误
【单选题】Pack up the items you'd like ______ along and leave behind those you dislike ______ with you on your journey. [     ]
A.
to take; to take
B.
taking; taking
C.
to take; taking
D.
taking; to take
【判断题】Pragmatics is more powerful than semantics and syntax in that it can solve problems that the other two discipline can not.
A.
正确
B.
错误
【判断题】需氧物种类繁多,通常用综合水质指标间接表示其含量多少。最常用的指标是生化需氧量(BOD)、化学需氧量(COD)和高锰酸盐指数。
A.
正确
B.
错误
【判断题】Pragmatics is more powerful than semantics and syntax in that it can solve problems that the other two discipline can not.
A.
正确
B.
错误
【判断题】Can reified class replace association class without any loss of semantics?
A.
正确
B.
错误
【判断题】桥梁荷载试验时,工况选择应反映桥梁的最不利受力状态。()
A.
正确
B.
错误
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