【判断题】【消耗次数：1】
当两种商品中一种商品的价格发生变动时，这两种商品的需求量都同时增加或减少，则这两种商品的需求交叉价格弹性系数为正。
①
正确
②
错误
参考答案：
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随机题目
【单选题】
They would also like to _____ the atomic museum.
①
demolish
②
destroy
③
ruin
④
smash
【单选题】
The taxi driver _______ at me in the rear-view mirror when I got on the car.
①
smile
②
laughed
③
grinned
④
stared
【单选题】
But later my hair began to fall_______, and my belly turned to water.
①
over
②
through
③
out
④
away
【单选题】
The tall building of the martyred city flashed by as we lurched from side to side ______ the driver’s sharp twists of the wheel.
①
in response to
②
as response to
③
in response of
④
as response of
【单选题】
The doctor gave the old man a _____ examination and congratulated him on his speedy recovery.
①
cautious
②
cautiously
③
careful
④
carefully
【单选题】
Tobacco addicts remain hopelessly blind to signs that say NO SMOKING.
①
A．瘾君子仍然绝望地对那些“严禁吸烟”的布告牌视而不见。
②
B．瘾君子绝望了，他们对那些“严禁吸烟”的布告牌都视而不见了。
③
C．瘾君子对那些“严禁吸烟”的布告牌视而不见，因为他们绝望了。
④
D．瘾君子对那些“严禁吸烟”的布告牌视而不见，真是不可救药。
【单选题】
The door opens, and who should enter but the very man we were talking of.
①
A．门开了，谁想到进来的正是我们刚才谈论的人。
②
B．门开了，除了那个我们正在谈论的人，谁应该进来?
③
C．门开了，谁还能进来，不就是那个我们刚才还在谈论的人嘛。
④
D．门开了，果然是我们刚才谈论的人进来了。