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【单选题】
钙是人体内含量最多的一种矿物质,其中大部分集中在A.
骨骼和牙齿
B.
软组织和细胞外液
C.
骨骼和软组织
D.
牙齿和血液
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举一反三
【单选题】Li Hong and I can go to the beach with you, ________.
A.
but either can Xiao Wang
B.
and so Xiao Wang can
C.
but Xiao Wang can't
D.
and Xiao Wang also can
【简答题】Fill in the blanks without referring to the original text. Then check your answers against the original. After that, read the passage aloud until you can say it from memory. These experiences taught L...
【单选题】Li Hong and I can go to the beach with you, ________.
A.
but either can Xiao Wang
B.
and so Xiao Wang car
C.
but Xiao Wan can’ t
D.
and Xiao Wan also can
【单选题】对液压制动的汽车连续踏几次制动踏板,始终到底且无力是原因( )。
A.
制动主缸皮碗损坏﹑顶翻
B.
制动蹄片和制动鼓间隙过大
C.
制动系统渗入空气或制动液气化
D.
制动液牌号不对
【简答题】选择适当的句子补全对话。 A young man wants to go to the City Library. Li Yan and Yang Ming tell him the way there. Man: Excuse me, . Li Yan: The City Library? Oh , Man: But Yang Ming: Look! It's just over. Get ...
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