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【简答题】
T1 已知理论筛下物产率为40%,筛分效率80%,则筛下物产率为(_)。
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【单选题】下列关于叶绿体和线粒体的叙述,正确的是
A.
细胞生命活动所需的能量均来自线粒体
B.
线粒体基质和叶绿体基质所含的酶种类均相同
C.
叶绿体在光下和黑暗下均能合成ATP
D.
线粒体和叶绿体均含有少量的DNA
【单选题】— What do you think of sports shows? — _____ [     ]
A.
I think so
B.
I don't think so
C.
I love them
【单选题】一组数据的最大值与最小值之差称为
A.
方差
B.
极差
C.
误差
D.
标准差
【单选题】一组数据的最大值与最小值之差称为
A.
平均差
B.
标准差
C.
极差
D.
四分位差
【简答题】Once I thought love meant flowers, gifts and sweet kisses. So, I really ___whether there is love between my parents. Everyday they are very busy ___ to earn money to pay the high schooling for me. The...
【单选题】— I'd love to go to Italy. — ______. [     ]
A.
So do I
B.
So am I
C.
Neither am I
D.
So would I
【单选题】I _____________ so terrible now if I ____________ so much pizza for lunch.
A.
would not had felt / ate
B.
wouldn’t feel / hadn’t eaten
C.
wouldn’t felt / hadn’t eaten
D.
wouldn’t have felt / had eaten
【简答题】补全对话。 A: ____1____ I help you? B: I'd ____2 ____ a pizza, please. A: What ___ 3___ pizza ___ 4 ___ you like? B: I'd like a large pizza. A: And ___ 5 ___ would you like ___ 6 ___ it? B: I'd like mushro...
【单选题】一组数据的最大值与最小值之差称为
A.
标准差
B.
方差
C.
组距
D.
全距
【单选题】下列关于叶绿体和线粒体的叙述,正确的是
A.
细胞生命活动所需的能量均来自线粒体
B.
线粒体和叶绿体均含有少量的 DNA
C.
线粒体基质和叶绿体基质所含的酶种类均相同
D.
叶绿体在光下和黑暗下均能合成 ATP
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