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问题 填空题

(10 分）

乙基香兰素的键线式结构如图，它是当今世界上最重要的合成香料之一。

(1)以下推测正确的是______      (填字母）。

a．从成键方式看,所含碳氧双键中有一个键和一个键

b．该物质的一个分子内含有一个碳氧双键、三个碳碳双键

c．1 mol该物质最多能与发生加成反应

d．该物质能使酸性高锰酸钾溶液褪色，也能与碳酸钠溶液反应产生气体

(2)已知R物质是乙基香兰素的同分异构体,其性质如下：

R符合上述条件,且lmol R与溴水发生取代反应时,消耗1mol溴，试写出符合要求的Fl的结构简式__________、___________、_________________；

(3)X也是乙基香兰素的同兮异构体,其结构简式为

可以通过不同的反应制得下列物质。

请回答下列问题：

A 反应③的反应类________________ 型_______；

B 反应①的化学方程式____________

答案

（10分）

单项选择题

“十二五”时期，加强和改善宏观调控，实现经济增长速度和（）相统一。

A.经济增长效益

B.结构质量效益

C.政府行政效率

D.政府公信力
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单项选择题

Lying in the sun on a rock, the cougar saw Jeb and his son, Tom, before they saw it. Jeb put his bag down quickly and pulled his jacket open with both hands, making himself look big to the cougar. It worked. The cougar hesitated, ready to attack Jeb, but ready to forget the whole thing, too.
Jeb took off his jacket, grasped Tom and held him across his body, making a cross. Now the cougar’s enemy looked even bigger, and it rose up, ready to move away, but unfortunately Tom got scared and struggled free of Jeb.
"Tom, No !" shouted his father.
But Tom broke and ran and that’s the last thing you do with a cougar. The second Tom broke free, Jeb threw himself on the cougar, just as it jumped from the rock. They hit each other in mid air and both fell. The cougar was on Jeb in a flash, forgetting about Tom, which was what Jeb wanted. Cougars are not as big as most people think and a determined man stands a chance, even just with his fists. As the cougar’s claws got into his left shoulder, Jeb swung his fist at its eyes and hit hard. The animal howled(吼叫) and put its head back. Jeb followed up with his other fist. Then out of the corner of his eye, Jeb saw Tom. The boy was running back to help his father.
"Knife, Tom," shouted Jeb.
The boy ran to his father’s bag, while Jeb started shouting as well as hitting, to keep the cougar’s attention away from Tom. Tom got the knife and ran over to Jeb. The cougar was moving its head in and out, trying to find a way through the wall. Jeb was making out of his arms. Tom swung with the knife, into the cougar’s back. It howled horribly and ran off into the mountains.

Which of the following happened first

A．The cougar jumped from the rock.
B．Tom struggled free of his father.
C．Jeb asked Tom to get the knife.
D．Jeb held Tom across his body.
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