下述哪种情况,患皮肤癌的可能性大
A.肤色白,容易产生小斑点
B.色素痣较多,特别大
C.有家族史
D.阳光烧伤性水泡
E.户外工作时间较长
参考答案:A,B,C,D,E
女性,22岁,多年来休息不好时经常出现发作性眼前闪光感,几分钟后消失,而后双侧额颞部出现搏动性头痛,伴恶心、呕吐,持续数小时缓解,神经系统检查完全正常()
A.普通型偏头痛
B.典型偏头痛
C.丛集性头痛
D.紧张性头痛
E.痛性眼肌麻痹
We hadn’t realized that there would be a power cut so we were astonished when the whole house was () into darkness.
A. dropped
B. dived
C. drowned
D. plunged