【多选题】下列关于车辆燃料消耗的说法正确的是()。
【判断题】地下水质量综合评价时,按单项指标评价结果最差类别确定,不需要指出最差类别指标。
【单选题】六淫中具有病程长、难以速愈的邪气是( )
【多选题】关于真空制动助力器助力的大小,下列说法正确的是?()
【判断题】声母“舌尖中浊鼻音”发音时,舌尖须抵住上颚
【单选题】Great changes ________ in China since the People’s Republic of China _________ in 1949.
A.
have taken place; was founded
B.
has taken place; was founded
C.
have been taken place; founded