下列哪种溃疡最易并发出血
A．十二指肠球部溃疡
B．十二指肠球后溃疡
C．胃小弯溃疡
D．幽门管溃疡
E．复合型溃疡
参考答案：B
补全对话。
A: __1__ your favourite food?
B: My favourite food is candy.
A: __2__ it __3__ food?
B: __4__ , it isn't. It is __5__ food.
A: What's your favourite __6__ ?
B: My favourite drink is juice.
A: That's good. It is a __7__ drink.
B: Yes. It is good for our health.
A: __8__ you __9__ __10__ juice here?
B: Sorry, I haven't got any juice here.
下列可以将两个三维实心体编辑成一个实心体的选项有（）。
A、UNI
B、SU
C、IN
D、SL
