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【简答题】
按照题目要求作图： (1)如图甲所示，一AO从空气中入射到水面上，请画出反射光线，并用字母β表示反射角． (2)在图，画出光线经凸透镜折射后的光路图． (3)一线经过某透镜前后的情况如图丙所示，请在图中虚线框内画出这个透镜． (4)在图，应用平面镜成像的特点画出物体AB在平面镜中成的像A'B'．
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举一反三
【简答题】A．At the gym. B．At a restaurant. C．In the park. D．On the street.
【单选题】What did the person think of the task?
A.
Totally unbearable.
B.
Rather difficult.
C.
Possibly boring.
D.
Somewhat exciting.
【简答题】根据短文，回答1~20题 此处正确答案是[A]humid[B]unhealthy[C]unbearable [D]crisp
【简答题】A．Go to bed earlier. B．Go to the gym less often. C．Go to the gym later in the day. D．Go to the gym with a friend.
【简答题】A．Go to bed earlier. B．Go to the gym less often. C．Go to the gym later in the day. D．Go to the gym with a friend.
【简答题】A．He is pleased with his exciting new job. B．He finds the huge workload unbearable. C．He finds his office much too big for him. D．He is not so excited about his new position.
【简答题】选择适当的谓语完成下列句子: 天气真冷,我的手指都失去了知觉. It __ __ __ that my finges went numb.
【简答题】A．At the gym. B．In the park. C．On the street. D．At a restaurant.
【多选题】建立社会主义市场经济是我们党的一个伟大创举,社会主义市场经济理论包含以下要点:( )
A.
计划经济等于社会主义
B.
市场经济等于资本主义
C.
计划和市场都是经济手段
D.
市场经济作为资源配置的一种方式本身不具有制度属性
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