计算机的内存储器比外存储器( )。
A.更便宜
B.储存更多信息
C.存取速度更快
D.虽贵,但能储存更多信息
参考答案:C
—I may go to the market this afternoon.
—Could you please buy some fruit for me you are there?
A.since
B.if
C.while
D.fits
( )为微球的载体材料。
A.氟利昂B.磷脂类(卵磷脂)C.凡士林D.聚乙二醇E.白蛋白