The newcomer went to the library the other day and searched for he could find about Mark Twain.A.wherever B.however C.whatever D.whichever 答案:【答案】C【解析】考查宾语从句。句意:这个新来的人几天前去了图书馆,搜寻他能找到的任何关于马克·吐温的资料。A. wherever无论在哪里;B. however无论如何;C. whatever无论什么;D. whichever无论哪个。空处所填词引导宾语从句,并且在从句中作find的宾语,指物,根据句意可知选whatever=anything that。A、B完成下表,并把可以省略乘号的地方省略.
运算定律名称
用字母表示
举例
乘法交换率
a×b=b×aab=ba
3×5=5×3
乘法结合率
a×b×c=a×(b×c)abc=a(bc)a×b×c=a×(b×c)abc=a(bc)
3×5×2=3×(5×2)3×5×2=3×(5×2)
乘法分配律
(a+b)×c=a×c+b×c(a+b)c=ac+bc(a+b)×c=a×c+b×c(a+b)c=ac+bc
(100+5)×96=100×96+5×96(100+5)×96=100×96+5×96
加法交换律
a+b=b+aa+b=b+a
3+5=5+33+5=5+3
加法结合律
a+b+c=a+(b+c)a+b+c=a+(b+c)
3+6+4=3+(6+4)3+6+4=3+(6+4)