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【单选题】
下列有关脂类的说法中哪一项不正确A.
促进必需氨基酸吸
B.
胆固醇是合成维生素D的原料
C.
每克可提供9kcal能量
D.
可提供脂溶性维生素
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反馈参考答案：
举一反三
【单选题】当系统中纯滞后时间τ占有一定分量时，则对于采样周期T的选取，如下哪个是合理的。
A.
取 T ≈τ
B.
取 T ≈τ／ 2
C.
取 T ≈τ／ 5
D.
取 T ≈τ／ 10
【单选题】He stays ___ till eleven o’clock every morning. (2002--17)
A.
in bed
B.
in a bed
C.
on bed
D.
on the bed
【单选题】He _____ still here till now when he was born in the city. [ ]
A.
stayed
B.
stays
C.
was
D.
was like
【单选题】Your suggestion that he ________ with us till next week is good.
A.
stay
B.
stays
C.
shall stay
D.
will stay
【简答题】Listen to the recording again and complete the blanks below to show Sandra and Jack's daily activities. Sandra is student of the University of (1) __________. She shars a (2) __________ in the city. E...
【简答题】常见的客户开发方法有哪些?
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