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【單選題】
下列操作中不正確的是
A.
過濾時，玻璃棒與三層濾紙的一邊接觸
B.
過濾時，漏斗下端緊貼燒杯內(nèi)壁
C.
加熱試管內(nèi)物質(zhì)時，試管底部與酒精燈燈芯接觸
D.
向試管中滴加液體時，膠頭滴管懸空在試管口上方約一厘米處。
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舉報參考答案：
舉一反三
【單選題】What is not mentioned in the sports news?
A.
The teams which played last night.
B.
The Wingers had one win and four defeats.
C.
How many wins the BBS has had altogether.
【單選題】What does the California scientists’ finding tell us?
A.
A relationship between the coffee drinking and the heart-disease increase in women.
B.
A relationship between alcohol drinking and the heart-disease increase in men.
C.
A relationship between tea drinking and the heart-disease decrease in women.
【單選題】How long has Windsor Castle been a royal palace?
A.
Over 900 years.
B.
Over 1000 years.
C.
Over 1200 years.
相關(guān)題目：
【單選題】What is not mentioned in the sports news?
A.
The teams which played last night.
B.
The Wingers had one win and four defeats.
C.
How many wins the BBS has had altogether.
【單選題】What does the California scientists’ finding tell us?
A.
A relationship between the coffee drinking and the heart-disease increase in women.
B.
A relationship between alcohol drinking and the heart-disease increase in men.
C.
A relationship between tea drinking and the heart-disease decrease in women.
【單選題】How long has Windsor Castle been a royal palace?
A.
Over 900 years.
B.
Over 1000 years.
C.
Over 1200 years.
參考解析：
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