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【判断题】
( )盐碱地的农作物长势不良,甚至枯萎,其主要原因是水分从植物向土壤倒流。A.
正确
B.
错误
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】Section A: 22. The HR department is a critical part of employee well-being in any business, no matter small it is.
A.
how
B.
what
C.
where
D.
which
【单选题】The police finally ___ about the causes of the traffic.
A.
found in
B.
found out
C.
looked out
【单选题】典型左心衰竭的血流动力学变化包括
A.
CO↓LVEDP↓PAWP↑HR↑
B.
CO↑LVEDP↑PAWP↓HR↓
C.
CO↑LVEDP↓PAWP↑HR↑
D.
CO↑LVEDP↑PAWP↑HR↓
E.
CO↓LVEDP↑PAWP↑HR↑
【单选题】The police finally caught up with the man _____ was the escaped prisoner. [ ]
A.
who they thought
B.
whom they thought
C.
they thought him
D.
that they thought him
【单选题】The police finally found the robber near a river .
A.
lying; dead
B.
lay; died
C.
laid; death
D.
lain; dying
【单选题】骨骼肌兴奋收缩耦联过程的必要步骤是()
A.
电兴奋通过纵管传向肌细胞深部
B.
纵管膜产生动作电位
C.
纵管终末池的Ca2+释放
D.
终末池的Ca2+逆浓度差进入肌浆
E.
Ca2+与肌动蛋白结合
【单选题】骨骼肌兴奋-收缩耦联过程的必要步骤是
A.
电兴奋通过纵管传向肌细胞深部
B.
纵管膜产生动作电位
C.
纵管终末池对Ca 2+ 的通透性升高
D.
纵管终末池中的Ca 2+ 逆浓度差进入肌浆
E.
Ca 2+ 与肌钙蛋白结合
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