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【单选题】
关于 肾小球滤过膜的描述, 错误 的是A.
由血管上皮细胞、基膜和肾小囊脏层上皮细胞三层组成
B.
基膜对滤过膜的通透性起最重要作用
C.
对分子大小有选择性
D.
带负电荷分子更易通过
E.
带正电荷分子更易通过
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【单选题】What surprises Martha about other companies?
A.
They don't monitor their competitor's activities.
B.
They are unaware of their won weaknesses.
C.
They don' t act on the information they have.
【单选题】What surprises Martha about other companies?
A.
They don't monitor their competitor's activities.
B.
They are unaware of their own weaknesses.
C.
They don't act on the information they have.
【单选题】According to Martha, what is the most important factor in MAX's success?
A.
The same customers keep buying their products.
B.
They only sell the best quality products.
C.
They earn high profit.
【单选题】用某疗法治疗急性腰扭伤病人30例,两周后痊愈25例,由此可以认为
A.
该疗法效果好
B.
该疗法疗效一般
C.
该疗法只有近期疗效
D.
因治疗例数太少，尚不能说明该疗法的疗效如何
E.
因无对照故不能说明该疗法疗效如何
【单选题】用某法治疗急性腰扭伤病人30例，两周后痊愈25例，由此可认为________
A.
该法疗效好
B.
该疗法疗效一般
C.
不能判定该疗法效果如何，因为治疗例数少
D.
不能判定该疗法效果如何，因为没有设立对照
【单选题】Martha's utility function is U (x, y) = min { x + 2y, 2x + y } . George's utility function is U (x, y) = min { 2x + 4y, 4x + 2y } . If George and Martha have the same income and face the same prices f...
A.
George and Martha will both demand the same amount of y.
B.
Martha will always prefer George's consumption bundle to her own.
C.
George will always prefer Martha's consumption bundle to his own.
D.
George will demand more x than Martha demands.
【多选题】营养素对基因表达的作用特点( )
A.
一种营养素可调节多种基因的表
B.
一种基因表达又受多种营养素的调节
C.
营养素可影响细胞增殖、分化及机体生长发育的有关基因表达
D.
营养素可对致病基因的表达产生重要的调节作用
【多选题】营养素对基因表达的作用特点( )
A.
一种营养素可调节多种基因的表达
B.
一种基因表达又受多种营养素的调节
C.
营养素可影响细胞增殖、分化及机体生长发育的有关基因表达
D.
营养素可对致病基因的表达产生重要的调节作用
【单选题】Martha Berry was named one of the twelve most important women in the U. S. because ______.
A.
she had helped developed one of the most backward area in the U. S.
B.
she had helped set up some of the most advanced schools in the U. S.
C.
she had received many medals and honors
D.
she had never stopped working till her death
【单选题】What is unusual about the island of Martha's Vineyard?
A.
It was settled more than 300 years ago.
B.
Alexander Graham Bell visited there.
C.
A large number of its residents were deaf.
D.
Each family living there had many children.
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