皮皮学,免费搜题
登录
搜题
【单选题】
用炉灰化样品时,下面操作不正确的是
A.
用坩埚盛装样品
B.
将坩埚与样品在电炉上炭化后放入
C.
将坩埚与坩埚盖同时放入炭化
D.
关闭电源后,开启炉门,降低至室温时取出
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
【简答题】How are you feeling? ______ 2. How's your family? ______ 3. What do you like doing on weekends? ______ 4. How often do you go out? ______ 5. Who are you going out with? ______ 6. Why are you working o...
【单选题】Look at the boys. They _____ s at school. [     ]
A.
play
B.
playing
C.
are play
D.
are playing
【单选题】Faber Motors manufactures three lines of cars: high-end security cars for government agencies, commercial cars for consumers and individuals, and professional racing cars. The high-end security cars a...
A.
direct distribution system
B.
horizontal marketing system
C.
corporate vertical franchise system
D.
multichannel distribution system
E.
administered vertical marketing system
【多选题】在确立科学正确的人生观的过程中,人们往往不可回避的问题是“如何看待金钱”。下列有关人生与金钱的说法正确的是( )
A.
金钱拜物教使人唯利是图,损人利己
B.
人要做金钱的主人,不能做金钱的
C.
在市场经济时代,追求金钱是人生的最高目的
D.
金钱只是人生存和发展的一个条件,不是人生的全部
【单选题】Faber did not want to ______ his life to no purpose.
A.
press
B.
offer
C.
guide
D.
risk
【单选题】What are the boys playing?
A.
We’re playing football.
B.
They’re playing football.
【单选题】The boys enjoy playing basketball __________ many of the girls relax by playing ping-pong.
A.
while
B.
or
C.
since
D.
if
【单选题】电感耦合方式的RFID系统,电子标签一般为( )。
A.
无源标签
B.
有源标签
C.
低频标签
D.
高频标签
【单选题】Most of the boys in our class ________ playing football; only a ________ likes playing basketball. [     ]
A.
like; majority
B.
likes; majority
C.
like; minority
D.
likes; minority
【判断题】预留轨缝的目的是为了让钢轨热胀冷缩。
A.
正确
B.
错误
相关题目: