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【單選題】
下列物質分離的方法正確的是
A.
從碘水中提取碘：用酒精萃取
B.
除去CO中少量![]()
：通過灼熱的Cu網后收集氣體
C.
除去KCl溶液中的少量![]()
：加入適量NaOH溶液，過濾
D.
除去![]()
中的少量HCl：通入飽和![]()
溶液，收集氣體
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舉報參考答案：
舉一反三
【單選題】__________ told Leah about the audition.
A.
Joanna
B.
Rachel
C.
Her mom
D.
Mr. Johnson
【單選題】Look at the ground, it is wet. It ________ last night.
A.
must have rained
B.
must rain
C.
could have rained
D.
may have rained
【單選題】Leah did not want to take part in the audition because __________.
A.
she wasn’t feeling well
B.
she hadn’t gotten a violin of her own
C.
she thought she wouldn’t do well in it
D.
she had already been a member of the band
【單選題】According to the passage, how many times did Rachel compete against Leah altogether?
A.
2.
B.
4.
C.
6.
D.
8.
【單選題】—Who______ it be that is knocking at the door? —It ______ be Father, but I’m not sure.
A.
can; must
B.
can; may
C.
must; can
D.
may; must
相關題目：
【單選題】__________ told Leah about the audition.
A.
Joanna
B.
Rachel
C.
Her mom
D.
Mr. Johnson
【單選題】Look at the ground, it is wet. It ________ last night.
A.
must have rained
B.
must rain
C.
could have rained
D.
may have rained
【單選題】Leah did not want to take part in the audition because __________.
A.
she wasn’t feeling well
B.
she hadn’t gotten a violin of her own
C.
she thought she wouldn’t do well in it
D.
she had already been a member of the band
【單選題】According to the passage, how many times did Rachel compete against Leah altogether?
A.
2.
B.
4.
C.
6.
D.
8.
【單選題】—Who______ it be that is knocking at the door? —It ______ be Father, but I’m not sure.
A.
can; must
B.
can; may
C.
must; can
D.
may; must
參考解析：
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