同病异影
参考答案:
同一疾病可因发展阶段不同或类型不同而表现为不同的X线征象。
People try to avoid public transportation delays by using their own cars, and this ______ creates further problems.
A.in short
B.in case
C.in doubt
D.in turn
以下属于丝绸之路中所运送的商品的是?()
A、马匹
B、丝绸
C、茶叶
D、陶瓷