皮皮学，免费搜题
登录
搜题
【单选题】
镁粉在焰火、闪光粉、鞭炮中是不可缺少的原料，工业制造镁粉是将镁蒸气在某冷却剂中冷却，下列可作为冷却剂的是（　　） ①CO 2 ②O 2 ③Ar④H 2 ⑤N 2 ⑥Cl 2 ．
A.
①②
B.
③④
C.
③⑥
D.
③⑤
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
【多选题】在无氧条件下，高等植物利用葡萄糖进行呼吸作用最后形成 [     ]
A.
CO 2 和H 2 O
B.
CO 2 和酒精
C.
乳酸
D.
丙酮酸和CO 2
查看完整题目与答案
【单选题】Mary runs to the bus stop and gets _______ the bus No.4.
A.
on
B.
off
C.
up
查看完整题目与答案
【单选题】糖酵解的终产物是(    )
A.
H 2 O和CO 2
B.
乙酰CoA    
C.
丙酮酸    
D.
乳酸
查看完整题目与答案
【简答题】男式机织夹克衫，面料由70%棉、30%涤纶混纺而成，夹里由100%涤纶制成，衬料由 70%涤纶、30%粘胶纤维制成
查看完整题目与答案
【简答题】A．Meet at the bus stop. B．Finish their candy bars. C．Get off the bus at the next stop. D．Meet in front of the rest rooms.
查看完整题目与答案
【单选题】Some directors are avoiding this by filming several endings. In theaters, the audience sometimes chooses the ending they want to see. This is becoming popular with theaters because ____________ .
A.
they can make more money
B.
everyone gets to see the ending they want
C.
several complete ending are shown
查看完整题目与答案
【单选题】Where is the post office?
A.
It's near the bus stop.
B.
It's far away from the bus stop.
C.
It's behind the bus stop.
查看完整题目与答案
【单选题】已知在适宜的条件下发生如下反应：①C+CO 2 ＝2CO ②C+H 2 O＝CO+H 2 ③CO +H 2 O=CO 2 +H 2 由此可以判断，在该温度下，C、CO、H 2 的还原性强弱顺序是
A.
CO>C>H 2
B.
C>CO>H 2
C.
C>H 2 >CO       
D.
CO>H 2 >C
查看完整题目与答案
【单选题】The ending “ -some ” in a term often means ( )
A.
the body
B.
mass
C.
material
D.
cavity
查看完整题目与答案
【单选题】--- Where’s the bus stop?     -- ___________.
A.
It’s near the school.
B.
I live near the bus stop.
C.
Don’t ask me.
D.
Stop here.
查看完整题目与答案
相关题目：
【多选题】在无氧条件下，高等植物利用葡萄糖进行呼吸作用最后形成 [     ]
A.
CO 2 和H 2 O
B.
CO 2 和酒精
C.
乳酸
D.
丙酮酸和CO 2
查看完整题目与答案
【单选题】Mary runs to the bus stop and gets _______ the bus No.4.
A.
on
B.
off
C.
up
查看完整题目与答案
【单选题】糖酵解的终产物是(    )
A.
H 2 O和CO 2
B.
乙酰CoA    
C.
丙酮酸    
D.
乳酸
查看完整题目与答案
【简答题】男式机织夹克衫，面料由70%棉、30%涤纶混纺而成，夹里由100%涤纶制成，衬料由 70%涤纶、30%粘胶纤维制成
查看完整题目与答案
【简答题】A．Meet at the bus stop. B．Finish their candy bars. C．Get off the bus at the next stop. D．Meet in front of the rest rooms.
查看完整题目与答案
【单选题】Some directors are avoiding this by filming several endings. In theaters, the audience sometimes chooses the ending they want to see. This is becoming popular with theaters because ____________ .
A.
they can make more money
B.
everyone gets to see the ending they want
C.
several complete ending are shown
查看完整题目与答案
【单选题】Where is the post office?
A.
It's near the bus stop.
B.
It's far away from the bus stop.
C.
It's behind the bus stop.
查看完整题目与答案
【单选题】已知在适宜的条件下发生如下反应：①C+CO 2 ＝2CO ②C+H 2 O＝CO+H 2 ③CO +H 2 O=CO 2 +H 2 由此可以判断，在该温度下，C、CO、H 2 的还原性强弱顺序是
A.
CO>C>H 2
B.
C>CO>H 2
C.
C>H 2 >CO       
D.
CO>H 2 >C
查看完整题目与答案
【单选题】The ending “ -some ” in a term often means ( )
A.
the body
B.
mass
C.
material
D.
cavity
查看完整题目与答案
【单选题】--- Where’s the bus stop?     -- ___________.
A.
It’s near the school.
B.
I live near the bus stop.
C.
Don’t ask me.
D.
Stop here.
查看完整题目与答案