皮皮学,免费搜题
登录
搜题
【简答题】
中国目前拥有世界上最大最快的高速铁路网。高铁列车的运行速度还将继续提升,更多的城市将修建高铁站。高铁大大缩短了人们出行的世界。相对飞机而言,高铁列车的突出优势在于准时,因为基本不受天气或交通管制的英雄。高铁极大地改变了中国人的生活方式。如今,它已经成了很多人商务旅行的首选交通工具。越来越多的人也在假日乘高铁外出旅游。还有不少年轻人选择在一个城市工作而在邻近城市居住,每天乘高铁上下班。
拍照语音搜题,微信中搜索"皮皮学"使用
参考答案:
参考解析:
知识点:
.
..
皮皮学刷刷变学霸
举一反三
【简答题】设函数y=kx 2 +(2k+1)x+2(k为任意实数) (1)求证:不论k为何值,该函数图象都过点(0,2)和(-2,0); (2)若该函数图象与x轴只有一个交点,求k的值.
【单选题】It was _____ he came bank from Africa that wear _________ he met the girl he would like to marry.
A.
when then
B.
not until
C.
not until that
D.
only when
【单选题】如图甲所示的电路,当闭合开关S后,两个电压表指针偏转均如图乙所示,则电阻R1和R2两端的电压分别为 ( )
A.
8 V   2 V
B.
10 V   2 V
C.
2 V   8 V
D.
2 V 10 V
【简答题】设函数y=a x -b(a>0,a≠1)的图象过点(1,2),函数y=log b (x+a)(b>0,b≠1)的图象过点(0,2),则a+b等于______.
【单选题】It was ________ he came back from Africa that year ________ he met the girl he would like to marry. [     ]
A.
when; then
B.
not; until
C.
not until; that
D.
only; when
【简答题】阅读理解。 John was waiting for the girl whose heart he knew, but whose face he didn't, the girl with the rose. Thir months ago, in a Florida library he took a book off the shell and found himself inte...
【单选题】Was it from the lake ________ he often went fishing ________ he saved the drowning girl?
A.
that; that
B.
where; where
C.
where; that
D.
that; where
【简答题】(本小题满分10分) 设函数 ( 为任意实数) 小题1:(1)求证:不论 为何值,该函数图象都过点(0,2)和(-2,0); 小题2:(2)若该函数图象与 轴只有一个交点,求 的值.
【单选题】He was so deep in love with that girl that he was willing to trade everything () her love.
A.
with
B.
to
C.
from
D.
for
【简答题】在如图所示的电路中,电阻R1=30Ω.开关S闭合后,两电流表的示数分别为0.3A和0.8A.求: (1)通电1min内,电流经过R1、R2时所做的功W1、W2. (2)通电1min内,整个电路消耗的电能.
相关题目: