SDRAM内存有多少个引脚()。
A.30
B.72
C.184
D.168
参考答案:D
Now more and more man-made satellites are _______ by humans. [ ]
A. sent for
B. send up
C. sent up
D. sent into
A:東洋商社の営業部でございます。( )。B:こちらこそ。