(1). (单选题) A.in the 30s B. in my 30s C. in 30s D. at my 30s(本题1.0分)

(1).? (单选题) Language is important to us because _________. (单选题) 单选题 ? (1). (单选题) Which of the following is the best title for the passage? ( ) (1).? (单选题) Which of the following sentences is correct with punctuation? (3).? (单选题) Ann suggests that Mary offer drinks________. (3). (单选题) Perception involves what ______ .( )(本题4.0分) (单选题) 4∶3∶2液的张力是 (1). (单选题) What is the best title? ( ) (本题3.0分) (单选题) 胃() 单选题：3、悬架属于汽车底盘的（ ）。 (3). (单选题) Before his father’s death, the young man ______. (单选题) 3NF( )规范为4NF (单选题) Fe3+,Al3+对铬黑T有 ( ) (1).? (单选题) The local restaurant provides dishes that ______ different taste. (单选题) 女,30岁,继发性闭经3年,孕激素试验呈阴性,雌激素试验呈阴性,基础体温呈双相型。闭经属于 (单选题) 李煜属于( ) 9.[单选题] (单选题)中国:杭州 单选题-不用于