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【简答题】
重量分析法可分为（）、（）和（）三类。“灼烧至恒重”中的“恒重”是指（）称量之差小于（）。
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反馈参考答案：
举一反三
【单选题】—Do you often see William _____ on the playground? —No, but he is often seen ______Chinese Kongfu in the park. [ ]
A.
run, play
B.
run, to play
C.
running, play
【单选题】—Do you often ______ your penfriend? —Not very often. [ ]
A.
hear from
B.
hear about
C.
hear of
D.
hear
【单选题】—Do you often see John on the playground? —No, but he is often seen the guitar in the park.
A.
run; play
B.
running; to play
C.
run; to play
【简答题】给下列的问句选择合适的答语。 ( ) 1. Where does he work? ( ) 2. What do you often do? ( ) 3. How do you go to school? ( ) 4. What is your mother? ( ) 5. Who's this boy? ( ) 6. What are you go...
【单选题】—Do you often see William _____ on the playground? —No, but he is often seen to play Chinese kung fu in the park. [ ]
A.
run
B.
to run
C.
ran
D.
to running
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