糖酵解途径的关键酶是()
A.葡萄糖激酶
B.磷酸果糖激酶
C.丙酮酸羧化酶
D.磷酸甘油酸激酶
E.异柠檬酸脱氢酶
参考答案:B
溴酸钾会导致人的中枢神经紊乱、诱发癌变,卫生部明令禁止向面粉中添加溴酸钾.溴酸钾(KBrO3)中溴元素(Br)的化合价为( )
A.-l
B.+1
C.+3
D.+5
It will be a big help if you go to the store and get what we need for dinner.________,I’ll set the table. (2013·浙江,14)
A.As a result
B.On the whole
C.In the meanwhile
D.As a matter of fact