【简答题】The author can’t remember his relatives clearly because ________. A) he didn’t live very long with them B) he was fully occupied with observing nature C) he was too young when he lived with them D) th...
【单选题】参照下图构建模型 , 注意原点位置和模型朝向。设定材料为普通碳钢 , 密度 为 0.0078g/mm 3 。 请问该模型的重量为 _____ ( g )
【单选题】Why didn't the author's wife and friends ask any more about what had happened?
A.
They didn't want the author to be embarrassed.
B.
They were anxious not to arouse fierce argument.
C.
They became very worried about his safety.
D.
They were interrupted by the doorbell ring.
【单选题】参照下图构建模型,注意原点位置和模型朝向。设定材料为普通碳钢,密度为0.0078g/mm3,请问模型的质量是多少?【图片】
【单选题】党的十九大报告指出:“坚定不移贯彻新发展理念,坚决端正发展观念、转变发展方式,发展质量和效益不断提升。”同时也作出了“我国经济已由高速增长阶段转向高质量发展阶段”的重大判断。这告诉我们( )
B.
促进发展,要以更加开放的态度积极参与全球规则制定
【单选题】Years ago we didn ’t know this, but recent science ( ) that people who don ’t se ep well soon get ill.
【简答题】参照下图构建模型,注意其中的对称、相切、同心等约束关系。(输入答案时请精确到小数点后两位,主要不要使用科学计数法)请问模型体积为多少?已知:A=70,B=36,C=36,D=82,E=66。【图片】
【单选题】why didn’t the author make an apology to her father?
A.
she thought she was right
B.
she couldn’t find the right words.
C.
she was afraid that her father didn’t forgive her.
【单选题】Why didn't the author take any money with him?
A.
Because he didn't have any.
B.
Because he thought it was unnecessary.
C.
Because he didn't want to spend any.