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【多选题】
3心肌的前负荷对心肌收缩力的影响A.
一定范围内,前负荷增加心肌收缩力增加。
B.
超过一定范围,前负荷增加心肌收缩力降低。
C.
静脉输液速度加快,前负荷增加。
D.
老人、儿童、心脏病人,需控制输液速度。
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举一反三
【单选题】Modern science has ______ music.
A.
interchangeable
B.
changed
C.
interchangeably
D.
changeable
【简答题】Modern science has given clear evidence ______ smoking can lead to many diseases. A. what B which C. that D where
【多选题】These are the examples of the impact modern science has on shaping society.
A.
you decide to eat a baked potato instead of fries
B.
your quart of milk has a nutrition label
C.
schools check students' vaccination records
D.
it's illegal to pour used motor oil down a storm drain
【简答题】图示结构铰C两侧截面的相对转角(正向如图示)为()。 (A) 26.67/EI (B) 33.33/EI (C) 40/EI (D) -40/EI
【简答题】—The train _____(leave) already. —When _____ the train _____(leave)?
【简答题】It was already eight o’clock ____________ we got there.
【单选题】When he moved to Germany in _______ he was already in _______.
A.
the fifties; his sixties
B.
fifties; his sixties
C.
the fifties; his sixty
【单选题】He will never _______ though every means ________ tried already.A．lose heart; has beenB．lose hear
A.
5. He will never _______ though every means ________ tried already. A．lose heart; has been
B.
lose heart; have been
C.
lose his heart; was
D.
lose his heart; had
相关题目：
【单选题】Modern science has ______ music.
A.
interchangeable
B.
changed
C.
interchangeably
D.
changeable
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