牙磨损的并发症不包含
A.牙隐裂B.颞颌关节紊乱综合征C.食物嵌塞D.牙髓病E.创伤性溃疡
参考答案:A
已知表示质子数不同的原子。下列图示中,表示纯净物的是[ ]
A.
B.
C.
D.
( ) would the deadline for shipment be exceeded by one week .
A.In any case
B.By all means
C.In no case
D.Under all circumstances