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问题 选择题

下列说法不正确的是

A．常温下，氧气与所有金属都能反应

B．棉花属于天然有机高分子材料

C．结晶水合物属于纯净物

D．中和反应一定有盐和水生成　　

答案

答案：A

A、常温下，氧气不与金等反应，故A说法不正确；

B、棉花属于天然有机高分子材料，故B说法正确；

C、结晶水合物属于纯净物，故C说法正确；

D、中和反应是指酸和碱反应生成盐和水的反应，故D说法正确。

填空题



The Commission is expected to propose allowing people to choose which legal jurisdiction they would come under, based on their (1) or their residency. But the proposal is set to (2) because of the very different laws on divorce that apply across the EU. The Commission wants to (3) problems over which law to apply when, for example, a married couple from one member state is (4) in another member state or when the couple is of different EU nationalities.
The (5) of member states are said to be (6) the idea and responded positively to a (6) which followed the (8) of a Commission Green Paper. With 15 percent of German divorces each year involving couples of different nationalities, the government of Berlin (9) see resolved the issue of which laws should apply.
But some member states are expected to resist the (10) which would involve allowing different divorce laws to be applied in their countries. For example, in Ireland where the divorce law states a couple must have been separated for four years, establish that their marriage has broken down and be offered (11) , a couple from Sweden could apply to an Irish court to allow them to divorce under Swedish law, where divorce can be (12) quickly.
The Irish government’s (13) to the Commission on the Green Paper stated: "Ireland is not in favor of allowing (14) to choose the applicable law, as this could be open to abuse.., such abuse would be likely to (15) most on divorce regimes, such as that of Ireland, which require a relatively long separation period." Ireland, like the UK, however, is allowed to choose whether to "opt-in" to such a proposal under rules agreed in the Amsterdam treaty. Malta has no such (16) but could (17) the proposal in the Council of Ministers since (18) approval will be required.
"It is going to lead to (19) ," said Geoffrey Shannon, Irish expert on the Commission on European Family Law, which examines the (20) of EU family law.
The proposal would also mean that judges would have to be trained in the divorce law of all 25 member states.
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单项选择题

重油主要是（）化合物。

A、碳氢

B、碳水

C、氢水
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