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【多选题】
影响每搏输出量的因素有A.
心肌前负荷
B.
心肌后负荷
C.
心肌的收缩能力
D.
心率
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举一反三
【单选题】Which of the following statements is NOT true, according to the passage you have just heard?
A.
Most of the kids who joined the gang live in slums.
B.
The policemen are very effective as they are expected.
C.
Gangs are also doing some recruiting propaganda.
D.
Television violence has also an influence on children.
【简答题】降低信道容量的一个因素是噪声,或不希望有的信息。
【简答题】Passage TwoQuestions 29 to 31 are based on the passage you have just heard. 第29题：
【单选题】Which of the following statements is NOT true, according to the passage you have just heard?
A.
Kidney transplants are very common.
B.
Brain transplants are very common.
C.
Heart transplants are very common.
D.
Brain transplants are not common.
【简答题】Passage One Questions 16 to 18 are based on the passage you have just heard. Passage Two Questions 19 to 21 are based on the passage you have just heard. Passage Three Questions 22 to 25 are based on ...
【单选题】母羊体况较差或草场植被欠缺时,应在配种前1-1.5个月实行短期优饲。
A.
、单选题（100道）
B.
在北方地区建造羊舍，首先要考虑的环境因素是（）
C.
保温
D.
通风
E.
光照
F.
地形
【单选题】According to the passage you have just heard, which of the following is the most important?
A.
The time factor.
B.
Musical language.
C.
Character.
D.
Consciousness.
【单选题】Passage Two Questions are based on the passage you have just heard． 根据录音，选择合适的答案（ ） 查看材料
A.
They have the same kind of culture．
B.
They are wild in different ways．
C.
They have most traveled areas．
D.
They have cutting edge technology．
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