1.单选题- (共5题)
A.垃圾采用露天焚烧处理 | B.禁止使用合成材料 |
C.日常用品使用绿颜色的 | D.采用太阳能路灯照明 |
A.把盛有红磷的燃烧匙伸人盛有氧气的集气瓶中,磷立即燃烧 |
B.硫在空气中燃烧,发出蓝紫色火焰 |
C.木炭在氧气中燃烧比在空气中燃烧更旺,发出白光,并放出热量 |
D.红磷在氧气中燃烧生成一种白色气体 |
A.小红提出:呼出的气体中水蒸气含量比空气中的少 |
B.取用澄清石灰水时,实验设计中未说明用量,小东取了1.5 mL |
C.亮亮认为在人呼出的气体中有一氧化碳 |
D.小红认为人呼出的气体中只有二氧化碳存在 |
2.选择题- (共1题)
The food in White Rose Restaurant was cheap and good, but nobody seemed to want to eat there. There were very few people going to eat there. The owner was very worried about it.
Then he thought of a good idea. A few weeks later, his restaurant was always full of men and their girlfriends. Whenever a gentleman came with a lady, a kind waiter would give each of them a beautiful menu. The menus looked exactly the same on the outside, but there was an important difference inside. The menu that the waiter handed to the man gave the correct price for each dish and each bottle of wine, while the menu that he handed to the lady gave a much higher price! So when the man calmly ordered dish after dish and wine after wine, the lady thought he was much more generous than he really was! The man could make a good impression on the lady.
3.填空题- (共2题)
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【1】题量占比
单选题:(5道)
选择题:(1道)
填空题:(2道)
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【2】:难度分析
1星难题:0
2星难题:0
3星难题:0
4星难题:0
5星难题:0
6星难题:0
7星难题:0
8星难题:4
9星难题:3