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【简答题】
Now read the passage about nuclear energy. You will have 45 seconds to read the passage. Begin reading now. Reading Time: 45 seconds Nuclear Energy Some scientists think that nuclear energy should be used. According to them, nuclear energy is nonpolluting, inexhaustible, independent from foreign pressures and it is the safest of all energy resources, because it is most closely watched. The well publicized risks have been greatly exaggerated. It should be remembered that none of the past accidents have killed or even injured one single person. The chance of dying from radiation from a nuclear plant are much smaller than the chances of being the victim of a traffic accident, of drowning, or of dying of cancer caused by smoke from other people's cigarettes. As for the danger of accidents, it is extremely small: reactors are built to resist earthquakes much stronger than any earthquake ever known to man, and their operations are automatically stopped at the slightest shaking.
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【简答题】精氨酸的pK1(α-COOH) = 2.17,pK2(α-NH3+) = 9.04,pK3(R基)= 12.48,其pI值为( )
【单选题】炭疽病人传染的途径是
A.
昆虫叮咬
B.
病人排泄物
C.
呼吸道分泌物
D.
伤口分泌物
E.
病人呕吐物
【单选题】To what does Waiting for Godotowe part of its success?
A.
The linear plot
B.
The coherent language
C.
The mysterious Godot
D.
The characterization of tramps
【单选题】“我的地盘我做主!”体现的是营销4I理论的()
A.
识别特性
B.
即时特性
C.
互动特性
D.
个性化特性
【简答题】炭疽病人传染的途径是()。
【简答题】精氨酸的pK1(COOH)值为2.17,pK2值为9.04,pK3值为12.98,其pI(等电点时的pH值)为_________。天冬氨酸的pK1(COOH)值为1.88,pK2(COOH)值为3.65,pK3值为9.60,其pI值为_________。
【单选题】使用胆碱受体阻断药反可使氯丙嗪的哪种不良反应加重
A.
帕金森综合征
B.
迟发性运动障碍
C.
静坐不能
D.
体位性低血压
E.
急性肌张力障碍
【单选题】精氨酸的Pk1=2.17(a-COOH)、Pk2=9.04(a-NH3)、Pk3=12.48(胍基),则精氨酸的pI=( )(低阶)
A.
1/2(2.17+9.04)
B.
1/2(2.17+12.48)
C.
1/2(9.04+12.48)
D.
1/3 ( 2.17+9.04+12.48 )
【单选题】对于发达国家来说,进行全球化采购的主要原因是( )
A.
价格低
B.
质量好
C.
商品垄断
D.
资源紧缺
【简答题】谷氨酸的pK1=2.19(α-COOH)、pK2=9.67(α-NH3)、pK3=4.25(γ-COOH),PI=()。精氨酸的pK1=2.17(α-COOH)、pK2=9.04(α-NH3)、pK3=12.48(胍基),PI=()。结果保留小数点后两位。
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