There _____ an orange and two apples on the table.[ ]
A. are
B. has
C. is
D. have
答案:C
下列哪项不是该病终止妊娠的指征
A.伴发恶性进展性视网膜炎
B.出现酮症酸中毒
C.胎儿发育过大
D.伴发严重的妊高征,或发生子痫
E.伴发动脉硬化性心脏病
You can help your body by drinking water when you're thirsty _____ drinking extra water when it's warm out. [ ]
A. but
B. while
C. or
D. and