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【简答题】
使心肌不产生收缩的原因是 ;使心房和心室不同时收缩的原因是 。
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举一反三
【单选题】The patient's health failed to such an extent that he was put into ______ care.
A.
tense
B.
rigid
C.
intensive
D.
tight
【单选题】公开密钥系统在电子商务文件的传输中实现了两次加密解密过程,即( )和( )。
A.
私有密钥的加密和解密
B.
公开密钥的加密和解密
C.
文件本身的加密和解密
D.
密钥本身的加密和解密
【简答题】We are all for your proposal that the discussion ________. A) be put off B) was put off C) should put off D) is to put off
【单选题】The patient's health failed to such an extent that he was put into ______ care.
A.
tense
B.
rough
C.
intensive
D.
tight
【多选题】公开密钥系统在电子商务文件的传输中实现了两次加密解密过程,即( )和( )。
A.
私有密钥的加密和解密
B.
公开密钥的加密和解密
C.
文件本身的加密和解密
D.
密钥本身的加密和解密
【单选题】The patient' s health failed to such an extent that he was put into ______ care.
A.
tense
B.
stiff
C.
intensive
D.
tight
【单选题】The patient is put on a _______ after her operation.
A.
drop
B.
straw
C.
drip
D.
fluid
【简答题】I put a pillow ______ the patient.
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