题目内容
烯烃的羟汞化-还原反应遵循的规则()
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关于马氏规则，下列说法错误的是()
Replace the underlined part in each of the following sentences with a word or phrase from the box below. Write your answer in the brackets. Make changes or additions where necessary.1. You see the lights in the students' reading room? They never go out at night these days because the final exams are drawing near. ( )2. At that time the working class was too small to make a successful revolution there. ( )3. The high-rise building in the back makes our old house seem small. ( )4. The figures show that our economy is healthy and we are likely to achieve sustainable and balanced (平衡的) growth. ( )5. The two girls spent the whole night planning the summer events, get-togethers, dinner parties, and many other things of the kind. ( )
The grass __________green.
Jim found a bird's nest __________ the tree.
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