your teacher often borrow books from the library?[ ]
A. Is
B. Are
C. Does
D. Do
答案:C
下列叙述中符合历史事实的是()
A.卢瑟福的α粒子散射实验揭示了原子核有复杂结构
B.玻尔理论成功地解释了各种原子的发光现象
C.爱因斯坦成功地解释了光电效应现象
D.赫兹从理论上预言了电磁波的存在
患者,男,59岁。夜睡不安,心烦易醒,口舌生疮,舌尖红赤,初步判断患者为()
A.心火亢盛
B.心肾不交
C.胆气虚
D.心阴不足
E.湿困于脾