选用精基准的表面安排在()工序进行。
A、起始
B、中间
C、最后
D、任意
参考答案:A
下列疾病与其好发部不匹配的是()
A.慢性胃溃疡—胃窦及移行部
B.溃疡性结肠炎—全结肠
C.肠结核—回盲部
D.十二指肠溃疡—十二指肠球部
E.克罗恩病—末段回肠及邻近结肠
—Does he _______a ping-pong ball?
—No, he doesn't, but his brother ________one.[ ]
A. has; has
B. have; have
C. have; has
D. has; have