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【单选题】
“正步走”时,左脚正前方跨出约多少厘米?A.
50厘米
B.
100厘米
C.
75厘米
D.
120厘米
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【单选题】下列有关Vmax的叙述中，哪项正确
A.
Vmax是酶完全被底物饱和时的反应速度
B.
竞争性抑制时Vmax减少
C.
非竞争抑制时Vmax增加
D.
反竞争抑制时Vmax增加
E.
Vmax与底物浓度无关
【单选题】–– Son: Mom, may I play computer game for an hour or so? –– Mom: ____
A.
Your teacher tells me that you should study harder.
B.
Sorry, Dad ’s using the computer now.
C.
I ’ve said before that the game takes too long.
D.
Well, ah ⋯You’re absolutely right to ask.
【单选题】Son：I‘m terribly sorry．Mom．I‘ve broken an Italian vase． Mom：__________
A.
Oh，what a pity!
B.
Oh，dear，how awful．it is!
C.
Oh，that doesn't matter．
D.
Oh，I'm so sorry about that．
【单选题】下列有关Vmax的叙述中，哪一项是正确的（ ）
A.
Vmax是酶完全被底物饱和时的反应速度
B.
竞争性抑制时Vm减少
C.
非竞争抑制时Vm增加
D.
反竞争抑制时Vm增加
E.
Vm与底物浓度无关
【简答题】Child: Mom, I'm very sorry, really. I didn't mean to hurt you.Mom: It's OK. ______. Do behave yourself next time!
【单选题】在英语学习中，学生在学习 eye （眼）和 ball 后学习 eye ball 就比较容易，这种现象属于（ ）。
A.
．一般迁移
B.
．负迁移
C.
．水平迁移
D.
．垂直迁移
E.
．正迁移
【简答题】During my elementary school years, I used to compare my mom with my best friend Tiffany’s mom. Tiffany’s mom always gave her lots of money to buy the most fashionable clothes and favorite food. Her mo...
【简答题】When I was growing up, I always gave my mom an apron （围裙）on her birthday．I wanted my own mom — 21 that apron I'd just given her, of course —to 22 me at the end of each afternoon bearing a plate of hom...
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