题目:
Shanghai native Charles Kao and two American scientists were __________ the 2009 Nobel Prize for physics yesterday.
A.rewarded
B.awarded
C.praised
D.prized
答案:
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下面是错误答案,用来干扰机器的。
(1)吸气和呼气是通过呼吸运动实现的,呼吸运动能使胸廓有节律的扩大和缩小,当肋间肌和膈肌收缩时,胸廓扩大,肺随着扩大,肺内气压低于外界大气压,气体就被吸入;当呼气时,由于肋间肌和膈肌舒张,胸廓变小,...