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【判断题】
随机森林算法的分类精度不会随着决策树数量的增加而提高,通常300~500棵决策树的组合是适宜的。A.
正确
B.
错误
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反馈参考答案：
举一反三
【简答题】罗贝尔。格兰说:我们呼吸者的空气,是由氮气、氧气和( )组成的。
【单选题】在锐捷路由器或者三层交换机上成功启动OSPF进程的前提是
A.
至少有一个loopback接口
B.
至少有一个接口处于UP状态
C.
至少有一个处于启用状态且配有IP地址的接口
D.
至少有一个物理接口处于UP状态
【单选题】He ______ at once when I promised to help him.
A.
cheered up
B.
gave up
C.
broke up
D.
turned up
【单选题】关于极限拉深系数，下属说法不正确的是：（）。
A.
圆筒形件拉深时，其拉深系数应小于相应的极限拉深系数。
B.
拉深方法影响极限拉深系数的大小。
C.
板料的相对厚度大时，极限拉深系数较小。
D.
多次拉深时，极限拉深系数的大小逐次递增。
【简答题】When I turned to him, he _________ to help me. (hesitation)
【单选题】coincidence n. 巧合 fashion n. 时尚 casual a. 非正式的 Deborah 德博拉(人名) 1 Listen to a conversation and choose the best answer to each of the following questions. [音频] Why has Linda come to Ma...
A.
To take a new job.
B.
To attend a fashion show
C.
To buy new clothes.
D.
To meet with Jason.
【单选题】-I think _______ask Tim for some advice. -_______. Last time when I turned to him, he refused to help.
A.
you'd rather; I think so
B.
you'd better; I'd rather not
C.
you have to; I'd rather not
D.
you'd better; I think so
【单选题】1 Why has Linda come to Manchester?
A.
To take a new job.
B.
To attend a fashion show.
C.
To buy new clothes.
D.
To meet with Jason.
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