代表“医生方向观视”的符号是()
A、BEV
B、EV
C、DRR
D、XR
E、MLC
参考答案：B
–May I have a look at your new iPad mini? –_______________
A．Sure, here you are.
B．You are welcome.
C．Hold on, please.
D．I agree with you.
有“黄金水道”之称的是：（ ）
A、黄河 B、京杭运河 C、长江 D 珠江
