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【单选题】
下列调查方法中能够探索不明确的因果关系的是（）。A.
邮寄调查法
B.
观察法
C.
实验法
D.
网络调查法
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【简答题】What are the contributions of Roman Conquest for the UK ’ s history?
【简答题】求立体体积由 与 所围成的立体(a＞0，b＞0，c＞0)；
【简答题】求空间立体Ω的体积，其中Ω是由 与 所围成的区域
【多选题】What are the UK ’ s three distinct systems of law?
A.
Wales Law
B.
English law
C.
Northern Ireland law
D.
Scots law
【单选题】图溃A、B、C表示的是滑动变阻器，要想在A、C间获得连续可调的输出电压，( )【图片】【图片】
A.
电路图为滑动变阻器的限流式接法
B.
电路图为滑动变阻器的分压式接法
C.
滑动变阻器只要接两根线
D.
电源接在A点和C点两点，B点不要接
【简答题】Around the world, girls do better than boys at school. These are the findings of a recent study that looked at the test results of 1.5 million 15-year-olds in 74 regions across the world. In only thre...
【简答题】Answer the questions using no more than three words from the passage for each question. What did early universities train people do ? 2. Why were several university established during the 18th and 19t...
【单选题】Jaguar has full manufacturing costs of their S-type sedan of £22,803. They sell the S-type in the UK with a 20% margin for a price of £27,363. Today these cars are available in the US for $55,000 whi...
A.
20.0%
B.
15.3%
C.
12.4%
D.
7. 2%
【简答题】求立体体积由(x 2 +y 2 +z 2 ) 2 =a 3 z(a＞0)所围成的立体；
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