标题《××关于申办专项控制商品准购证的报告》,错误是( )
A.发文事由概括不当
B.发文事由表意不准确
C.发文事由概括不简洁
D.文种使用不当
参考答案:D
In this university a medal with five thousand dollars _____ achieved success in science and technology every
two years. [ ]
A. is given to no matter who
B. is given to whoever
C. are given to anyone who
D. gives to whomever
按照题目要求作图:
(1)如图1气球在空中沿虚线做匀速直线运动,不计空气阻力,请画出气球的受力示意图.
(2)作出图2中两条光线经过凸透镜后的传播路径.
(3)如图3所示,请将插座、开关、电灯合理地连入照明电路中.