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【多选题】
关于实验室废水的处理正确的是
A.
一般或经稀释后无害的污水可直接排入医院污水管网集中处理
B.
被化学污染,对人体有害有毒物质的污水应设置独立的排水,经局部处理或回收利用才能排入室外排水
C.
而可疑被致病性体液污染的污水则应经过无害化处理后才能排放
D.
根据废液的成分有不同的处理方法,一般有物理法、化学法、生物法等
E.
实验室废液和污水排入排水系统时,必须符合国家标准的规定
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皮皮学刷刷变学霸
举一反三
【单选题】物联网应用中,不属于近距离通信的方式是
A.
NB-IoT
B.
RFID
C.
WIFI
D.
蓝牙
【单选题】在长度为n的顺序表中删除一个元素的时间复杂度为()。
A.
o(1)
B.
C.
O(n)
【单选题】听力原文:W: Let's do something! Why don't we go out for dinner or go dancing. M: I'm watching TV. W: You're always watching TV. Stop being such a couch potato! Get up and let's do something. M: I am doing...
A.
Because it's a way of relaxing himself.
B.
Because ha has nothing else to do.
C.
Because sitcom is very funny,
D.
Because watching TV is his favorite activity.
【单选题】物联网应用中,不属于近距离通信的方式是
A.
蓝牙
B.
RFID
C.
Wifi
D.
NB-IoT
【单选题】听力原文:W: Let's do something! Why don't we go out for dinner or go dancing. M: I'm watching TV. W: You're always watching TV. Stop being such a couch potato! Get up and let's do something. M: I am doing...
A.
Because it's a way of relaxing himself
B.
Because he has nothing else to do.
C.
Because sitcom is very funny.
D.
Because watching TV is his favorite activity.
【单选题】物联网应用中,不属于近距离通信的方式是
A.
RFID
B.
蓝牙
C.
WiFi
D.
NB-IoT
【判断题】希腊最著名的哲学家是师徒三人:苏格拉底、柏拉图和亚里士多德。()
A.
正确
B.
错误
【单选题】物 联网应用中,不属于近距离通信的方式是
A.
蓝牙
B.
RFID
C.
NB-IoT
D.
WiFi
【单选题】物联网应用中,不属于近距离通信的方式是
A.
WiFi
B.
NB-IoT
C.
蓝牙
D.
RFID
【单选题】在一容积为3.0*10^-2 m^3 的球形钢罐中储有0.5kg甲烷(CH4)。已知CH4的临界参数T_cr为190.7K,P_cr为4.64MPa。若甲烷由25℃上升到33℃,用R-K方程可知其压力变化为________MPa。
A.
0.071
B.
2.463
C.
2.534
D.
0.319
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