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【简答题】
为什么经济学家要作出假设？
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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】The costodiaphragmatic recess
【单选题】recess
A.
accepted quantity
B.
the act of receiving
C.
secluded place
D.
secrete news
【简答题】工程机械电路图通常采用()、()和()三种表达方式
【单选题】The Quebecois, (partly because of language, and partly because of religion), have (long been considering) (to separate) themselves from (the rest) of the Canadian provinces.
A.
partly because of language, and partly because of religion
B.
long been considering
C.
to separate
D.
the rest
【单选题】以下关于单臂路由和三层交换机的叙述错误的是
A.
两者都能够实现VLAN间互访
B.
三层交换机也能做二层转发
C.
三层交换机的转发是由CPU完成的
D.
在单臂路由技术里，路由器和交换机之间的链路是性能瓶颈
【单选题】The costodiaphragmatic recess is between the
A.
parietal and visceral pleurae
B.
costal and diaphragmatic pleurae
C.
costal and mediastinal pleurae
D.
costal and cupula pleurae
E.
diaphragmatic and mediastinal pleurae
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