【单选题】(Section A short conversation) 3.
A.
He enjoys writing home every week.
B.
He never fails to write a weekly letter home.
C.
He doesn't write home once a week now.
D.
He has been asked to write home every week.
【单选题】鼓式制动器的检查中,修理或更换摩擦片后应检查摩擦片与制动鼓的贴合面面积,此值应大于下列哪个值? ( )
【单选题】在Excel中,若在A1单元格输入'四川,在B1单元格输入'成都,在C1单元格输入=A1+B1,则C1单元格显示( )。
【单选题】在Excel中,若在A1单元格输入'四川,在B1单元格输入'成都,在C1单元格输入=A1+B1,则C1单元格显示______。
【判断题】文化的盛世不一定是多远的、开放的文化。()
【判断题】若变量X和Y之间具有线性相关关系,就可以建立一元线性回归模型进行回归分析。()
【单选题】(Section A short conversation) 3.
A.
He loves checking e-mail on the Internet.
B.
He usually goes to the Internet cafe to have a cup of coffee.
D.
He has a part-time job in the Internet cafe.
【单选题】极谱分析的电解池由三部分组成,即滴汞电极,饱和甘汞电极与铂丝辅助电极,这是为了