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【单选题】
维生素通常按其溶解性不同分为脂溶性维生素和水溶性维生素两大类。水溶性维生素包括B族维生素和维生素C。B族维生素几乎都是辅酶的组成成分，参与体内的代谢过程。如A.
辅酶A含尼克酰胺
B.
FAD含吡哆醛
C.
FMN含硫胺素
D.
NAD\r\n + \r\n含尼克酰胺
E.
TPP\r\n + \r\n含生物素
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【简答题】Separate interviews with parents showed that the vast majority were supportive ______ teachers, with 93 percent of primary school teachers and 89 percent of secondary school teachers seen as competent...
【简答题】Teachers always encourage their students ________ more confident. [ ] A) to be B) be C) are D) were
【多选题】关于晶闸管导通角α的说法错误的是（）。
A.
导通角α越大，则晶闸管整流输出电压越高
B.
导通角α越大，则晶闸管整流输出电压越低
C.
导通角α越大，则电动机的转速越低
D.
控制极电压越高，则导通角α越小
【单选题】From the passage, we can draw the conclusion that______.
A.
the personality of a child is well established at birth
B.
family influence dominates the shaping of one's characteristics
C.
the development of one's personality is due to multiple factors
D.
B-type characteristics can find no place in a competitive society
【单选题】What can we draw as a conclusion of the speech?
A.
We have no choice but to panic because we’re far from ready for the next epidemic.
B.
We need to store cans of spaghetti or go down into the basement for the next epidemic.
C.
There is not a single positive thing that can come out of the Ebola epidemic.
D.
If we start now, we can be ready for the next epidemic.
【单选题】Chicago Public Schools began to employ foreign teachers because______.
A.
there were not enough American teachers
B.
a program for foreign teachers was started
C.
the school board was interested in foreign teachers
D.
foreign teachers taught better than American teachers
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