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【简答题】
某反应速率常数的单位为mol /( m3.hr)，该反应为二级级反应。()
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举一反三
【单选题】According to the passage, the term “plastic sandwich” refers to_____.
A.
a kind of sandwich-shaped toy made of plastics
B.
a kind of plastics with different integration in each layer
C.
a kind of plastics with maximum strength and flexibility
D.
a kind of plastics made of 100% recycled materials
【单选题】单项选择。 I'd like some ______, please. [ ]
A.
sandwich and milk
B.
sandwiches and milk.
C.
sandwich and milks
D.
sandwiches and milks
【简答题】阅读理解 Sandwich is an Englishman. He lives in the 18th century. Sandwich is rich, but he likes to played cards for money. He often play f'or 24 hours, and doesn't even stop to have his mcals. He ordcrs ...
【单选题】Sandwich was an Englishman. He lived in the 18th century. Sandwich was rich, but he liked to play cards for money. He often played for twenty-four hours, and didn't even stop to have his meals. He ord...
A.
an Englishman
B.
an American
C.
a Frenchman
【单选题】Jerome, Kevin, and Seth shared a submarine sandwich.Jerome ate 1/2 of the sandwich, Kevin ate 1/3 of the sandwich, and Seth ate the rest. What is the ratio of Jerome’s share to Kevin’s share to Seth’s...
A.
2:3:6
B.
2:6:3
C.
3:1:2
D.
3:2:1
E.
6:3:2
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