乳癌的首要症状是()
A. * * 皮肤有溃烂
B.乳痛,尤在经前加重
C. * * 浅表静脉曲张
D. * * 内陷
E. * * 内可扪及硬而孤立的肿块
参考答案:E
He tries _______ English. And he finishes______ homework every day.
A.to learn, to do
B.learning, doing
C.to learn, doing
D.learning, to do
钧窑陈设类瓷器多施满釉,釉质肥厚,呈现“乳浊现象”,釉面下常出现不规则流动状的细线,文献中称为()
A、蚯蚓走泥纹
B、青蛇走泥纹
C、卧蚕伏露
D、青花纹