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【单选题】
家禽的唾液的PH呈( )。
A.
弱碱
B.
强碱
C.
C中性
D.
酸性
E.
强酸
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【单选题】Cell Phone Lets Your Secret Out Your cell phone holds secrets about you. Besides the names and (51) that you’ve programmed into it, traces of your DNA linger (逗留) on the device, according to a new s...
A.
explanation
B.
discovery
C.
book
D.
list
【单选题】TEXT B We all have offensive breath at one time or another. In most cases offensive breath emanates from bacteria in the mouth, although there are other, more surprising causes. Until a few years ago,...
A.
thrive on
B.
account for
C.
originate from
D.
descend from
相关题目：
【单选题】Cell Phone Lets Your Secret Out Your cell phone holds secrets about you. Besides the names and (51) that you’ve programmed into it, traces of your DNA linger (逗留) on the device, according to a new s...
A.
explanation
B.
discovery
C.
book
D.
list
【单选题】TEXT B We all have offensive breath at one time or another. In most cases offensive breath emanates from bacteria in the mouth, although there are other, more surprising causes. Until a few years ago,...
A.
thrive on
B.
account for
C.
originate from
D.
descend from
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