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【单选题】
Types of forces that occur are_______ for every ship when floating or moving through the water.A.
different
B.
identical
C.
similar
D.
not determined
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举一反三
【单选题】《中药品种保护条例》规定，中药一级保护品种的保护期限分别为
A.
三十年、二十年、十年、
B.
二十年、十年、八年、
C.
二十年、十年、八年、
D.
二十年、十年、五年、
E.
十年、五年、三年、
【单选题】Why did the writer want to send letters to his father?
A.
To express gratitude to him.
B.
To show his father what his life is like
C.
Because he miss his father
D.
To tell him about his recent personal experience
【单选题】Why did the author’s father push him to practice the accordion?
A.
Because his father himself didn’t get to play the violin when he was a kid.
B.
Because his father believed that music could touch the hearts of the people.
C.
Because the spell of music could make his father feel relaxed.
D.
Because his father discovered that his son had a great talent for music.
【单选题】盐酸小檗碱少许,加水5ml,缓缓加热溶解后,加5%氢氧化钠溶液2滴,再加丙酮4滴,即生成( )黄色沉淀 即为丙酮小檗碱。
A.
白色
B.
黄色
C.
橙色
D.
樱红色
【多选题】幼儿的生长发育评价指标一般包括
A.
形态指标
B.
智商指数
C.
生理功能指标
D.
心理指标
E.
D
F.
、幼儿梦游的主要原因有
G.
身体疲劳
H.
精神紧张
I.
喜欢梦游
J.
过度兴奋
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