一把椅子68元,一张桌子147元,学校准备购买9套课桌椅,一共需要多少元?
(68+147)×9,
=215×9,
=1935(元).
答:一共需要1935元.
Because of the nuclear crisis caused by the earthquake in Japan, many people lined up to
buy salt ______ seeking protection from radiation. [ ]
A. in face of
B. in search of
C. in terms of
D. in hopes of
车床钻孔与钻床钻孔产生的“引偏”,()易纠正。