A、 which
B、 that
C、 how
D、 what
答案：B
A、 which
B、 that
C、 how
D、 what
答案：B
A. more than
B. as much as
C. as many as
D. than”as+原级+as"可以用来表示倍数。解析:The new model costs twice more than last year＇s.
解析：解析:本题考查的知识点为二次积分的计算.由相应的二重积分的几何意义可知,所给二次积分的值等于长为1,宽为2的矩形的面积值,故为2.或由二次积分计算可知
A. 人民民主专政的国体和人民代表大会制度的政体
B. 共产党领导的多党合作和政治协商制度
C. 民主集中制
D. 民族区域自治制度
A. by at least
B. around
C. at nearly
D. in about
A. would forget
B. forget
C. have forgotten
D. will have forgotten
