皮皮学,免费搜题
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搜题
【单选题】
婴幼儿时期甲状腺分泌不足可产生
A.
侏儒症
B.
呆小症
C.
向心性肥胖
D.
肢端肥大症
E.
糖尿病
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举一反三
【判断题】危害的描述应计算食品中有毒物质每日的允许摄入量。
A.
正确
B.
错误
【判断题】预防艾滋病可以注射疫苗。()
A.
正确
B.
错误
【单选题】The postal rule is an exception to the principle that acceptance must be communicated. Which of the following is/are requirements for the postal rule to apply?(1)The letter must be received by the off...
A.
(1) and (2)    only
B.
(2) and (3)    only
C.
(2) only
D.
(1), (2) and (3)
【单选题】If Jenny is charged with petit theft of Fisher’s food, a misdemeanor, the court should rule
A.
Jenny is not guilty because she was acting under the direction of Joey.
B.
Jenny is guilty because an otherwise criminal act cannot be justified by threats of starvation.
C.
Jenny is not guilty because there was no “carrying away" of Fisher's food, and hence no completed theft crime was committed.
D.
Jenny is not guilty if a reasonable person would have regarded the theft as essential to avoid starvation.
【多选题】下列哪些是常用的分离、提纯蛋白质的方法
A.
透析
B.
电泳
C.
盐析
D.
离心
【单选题】湿式自动喷水灭火系统的温度适用范围为 °C。
A.
4 ~70
B.
0 ~68
C.
大于70
D.
小于4
【多选题】下列哪些是常用的分离、提纯蛋白质的方法
A.
透析
B.
电泳
C.
盐析
D.
离心
E.
生物碱试剂
【判断题】可以注射疫苗来预防艾滋病。( )
A.
正确
B.
错误
【简答题】What is the rule for palyers to play table tennis?
【单选题】Consider a variation on the Koch curve. Start with a line segment of length L. The iteration rule is illustrated below, where each segment is replaced by five segments, each of length 1/3 the origin...
A.
  (25 / 9) L
B.
  (10 / 6) L
C.
  (9 / 5) L
D.
  (16 / 9) L
E.
  (10 / 9) L
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