全国500强,第二产业的企业个数比第三产业的个数多几个()
A.228
B.230
C.250
D.229
参考答案:D
TASTE板通过两个模拟通道控制ATO控制器输出的()。
- Mom, shall we have dinner now?
- No, we don’t have dinner _____ your father comes back.
A.until
B.since
C.while
D.after