皮皮学，免费搜题
登录
搜题
【多选题】
关于块煤重介分选系统布置,以下说法那些是正确的?A.
不需要设置入料缓冲设施，直接用溜槽给入分选槽一端。
B.
入选下限为13（6）mm
C.
根据煤质情况和产品要求，可以用主选或主再选。
D.
主再选之间要设置固定筛，如果是主洗密度高，应设振动筛。
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
【单选题】It's difficult _____ a little girl to answer these questions. It's really nice ____ you to help her answer them. [ ]
A.
of ; of
B.
of; for
C.
for; of
D.
for; for
【单选题】Peter ______ be really difficult to deal with at times even though he’s a nice person in general.
A.
shall
B.
should
C.
can
D.
must
【单选题】—It’s meaningful us to do something for people in need． —It’s really nice you to think so．
A.
for; of
B.
of ; for
C.
for; for
D.
of; of
【单选题】— Dose the mooncake ______ nice ? — Yes, it’s really delicious !
A.
sound
B.
feel
C.
look
D.
taste
【单选题】---l had a really good weekend at my uncle s. ---_______.
A.
Oh. that s very nice of you
B.
Congratulations
C.
It s a pleasure
D.
Oh. I m glad to hear that
相关题目：