题型:问答题 论述题 Have you learned ______ more English at junior high school? [ ]A. spoken B. spoke C. to speak 查看答案
题型:问答题 论述题 ____ the foreign student had learned Chinese for several years in his own country, he could hardly understand the local Chinese in China.[ ]A. SinceB. AsC. UnlessD. Though 查看答案
题型:问答题 论述题 患者,36岁,外阴瘙痒,有糖尿病史。检查:外阴皮肤粘膜无明显变化,临床诊断外阴瘙痒。与外阴瘙痒有关的局部原因为()A.特殊感染B.药物过敏C.不良卫生习惯D.化学品刺激E.维生素缺乏 查看答案
题型:问答题 论述题 下面是四种与光有关的事实,能说明同一个介质对不同单色光的折射率不同的是 A.用光导纤维传播信号B.用透明的标准板和单色光检查平面的平整C.水面上的油膜呈现彩色光D.一束白光通过三棱镜形成彩色光带 查看答案