肺内易发生钙化转移瘤，原发灶可为（）
A.乳腺癌
B.骨肉瘤
C.恶性甲状腺肿瘤
D.前列腺癌
E.绒毛膜上皮癌
参考答案：A, B, C, D
The fact that so many people still smoke in public place _____ that we may need nationwide campaign
to raise awareness of the riks of smoking. [ ]
A. suggest
B. suggests
C. suggested
D. suggesting
输出动物，出境前须经隔离检疫的，在口岸出入境检验检疫机构指定的隔离场所隔离检疫（）。
