题目内容

发热开始前,先出现寒战的原因是

A. 体温调定点下移
B. 体温调节中枢功能障碍
C. 机体过度散热
D. 机体产热量不足
E. 体温调定点上移

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DNA受热变性时,出现的现象是

A. 在280nm波长处的吸光度增高
B. 在260nm波长处的吸光度增高
C. 碱基对以共价键连接
D. 溶液黏度增加
E. 最大光吸收峰波长发生转移

脂褐素大量增加最常见于

A. 细胞玻璃样变性
B. 细胞坏死
C. 细胞凋亡
D. 细胞水样变性
E. 细胞萎缩

A month ago, the British government announced a plan to keep terrorist suspects indefinitely under house arrest (1) the home secretary’s say-so, It has been attacked from all sides ever since. This week the government backtracked. Under the Prevention of Terrorism bill, (2) to Parliament this week, house arrest would (3) a potential (4) in the government’s ever-expanding anti-terrorist arsenal, but the government would first have to (5) of Article 5 of the European Convention on Human Rights guaranteeing a right to liberty. Parliament would have to vote on that.The government could do this (6) the terrorist threat to Britain, already described by the government as " (7) ", got even worse. Even then, the powers would remain (8) by political and judicial safeguards. Before the home secretary could make a house-arrest order, he would have to be satisfied on the (9) of probabilities--no longer on the basis of "reasonable suspicion --that the suspect has been "involved in a terrorism-related activity". He would also have to be (10) that such an order was "strictly required". The period of house-arrest will be limited to a maximum of six months, extendable through a new house-arrest order. Within seven days of its being imposed, the High Court would have to confirm that the home secretary had " (11) grounds" for making such an order. Even if it were so satisfied, the case would go on to a full court (12) The bill also provides for a whole range of lesser restrictions including tagging, curfews, a ban on association with specified people, prohibitions on using phones, restrictions on travel, and so on. (13) to meet the threat (14) by each suspect and limited to a renewable period of 12 months, these would not be subject to the same judicial scrutiny as house arrest. Nor would they require (15) from the European convention.But the new orders, including house arrest, would be used only where a suspected terrorist could not be prosecuted (16) because the evidence against him was not admissible in court, or because it might (17) intelligence sources or (18) techniques. Charles Clarke insists that he would prefer to prosecute. (19) the home secretary is considering further anti-terrorist legislation, including making it (20) to be involved in the preparation or commission of terrorist acts. 20()

A. Tailored
B. Cut
C. Repaired
D. Matched

当溶液的pH与某种氨基酸的pH一致时,该氨基酸在此溶液中的存在形式是

A. 净电荷为零
B. 非兼性离子
C. 带单价正电荷
D. 疏水分子
E. 带单价负电荷

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