炖是将原料改刀后,放入汤锅中加入调料,先用旺火烧开后改小火烧至原料酥烂即好的一种方法。
参考答案:对
— Why are we always having examinations?
— _____ whether we have grasped the knowledge in every subject.
[ ]
A. Test
B. Testing
C. To test
D. Tested
世界公认的引起肺癌的重要因素为()
A.饮食不节
B.邪毒侵肺
C.吸烟
D.大气污染
E.情志不畅