酒炙大黄，每100kg大黄用酒量为（）
A.25kg
B.20kg
C.30kg
D.10kg
E.15kg
参考答案：D
—Sorry, Jim isn't in right now.
—Can you tell him to ring me up if you ______ him? [ ]
A. see
B. will see
C. saw
D. are seeing
我国致力于在（）成为世界科技强国。
A.21世纪中叶
B.21世纪中后叶
C.22世纪初
D.22世纪中叶
