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【单选题】
基本闭塞法停用时，未装备LKJ的动车组列车根据调度命令将列控车载设备转入隔离模式运行，运行速度不超过（），运行至前方站进站信号机，按其显示的要求执行A.
30km/h
B.
40km/h
C.
45km/h
D.
60km/h
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反馈参考答案：
举一反三
【简答题】定义在 上的函数 是减函数，且是奇函数，若 ，求实数 的范围。
【单选题】The goals ( ) he had fought all his life no longer seemed important to him.
A.
for that
B.
for which
C.
for what
D.
of them
【简答题】The goals he had fought all his life no longer seemed important to him.
【单选题】The goals which he had fought all his life no longer seemed important to him.
A.
after
B.
for
C.
with
D.
at
【单选题】下面对电子邮件营销说法不正确的是( )。
A.
电子邮件营销的操作简单,成本低廉
B.
电子邮件营销可以主动向用户发送信息
C.
电子邮件营销不受限制,能够向任何用户发送信息
D.
电子邮件营销更有针对性,能够有选择性地发送信息
【单选题】The purpose of the author in writing this text is that
A.
willpower always betrays us; attitude matters.
B.
gluttony is considered to be the root of all evils.
C.
New Year's Resolution is anything but a routine.
D.
willpower itself is a kind of sacrifice which needs praising.
【单选题】The goals he had fought all his life no longer seemed important to him.
A.
for which
B.
after which
C.
at which
D.
with which
【单选题】已知命题“若函数 在 是增函数，则 ”，则下列结论正确的是
A.
否命题是“若函数 在 是减函数，则 ”，是真命题
B.
逆命题是“若 ，则函数 在 是增函数”， 是假命题
C.
逆否命题是“若 ，则函数 在 是减函数”， 是真命题
D.
逆否命题是“若 ，则函数 在 不是增函数”， 是真命题
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