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【简答题】
（12分）Ⅰ某化合物结构图，请根据所示的化合物回答问题： （1）该化合物中，官能团①的名称是________；官能团⑦的名称是________；该化合物是由________个氨基酸分子脱水形成的； （2）写出该化合物水解生成的任意一种氨基酸与氢氧化钠溶液反应的化学方程式：_________________ Ⅱ 食品安全关系着国民生计，影响食品安全的因素很多。 （3）聚偏二氯乙烯( )具有超强阻隔性能，可作为保鲜食品的包装材料。它是由________(写结构)发生加聚反应生成的。 (4)劣质植物油中的亚油酸[CH 3 (CH 2 ) 4 —CH===CH—CH 2 —CH===CH—(CH 2 ) 7 COOH]含量很低。下列关于亚油酸的说法中，正确的是________。（填序号） A．分子式为C 18 H 34 O 2 B．一定条件下能与甘油(丙三醇)发生酯化反应 C．能和NaOH溶液反应 D．能使酸性KMnO 4 溶液褪色 (5)假酒中甲醇(CH 3 OH)含量超标，请写出Na和甲醇反应的化学方程式：______________________。 （6）淀粉最终的水解产物是葡萄糖。请设计实验证明淀粉已经全部水解，写出操作、现象和结论：______________。
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【单选题】Which statement doesn't violate the 7C's principles?
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We export machines to many foreign countries.
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C.
We won't send goods to you until 10th March.
D.
We are glad to inform you that the goods under Contract No.235 were shipped on S.S. "East Wind" on Feb.,20.
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【单选题】Which statement doesn't violate the 7C's principles?
A.
We export machines to many foreign countries.
B.
Your letter  has been receivered recently.
C.
We won't send goods to you until 10th March.
D.
The goods under Contract No.235 were shipped on S.S. "East Wind" on Feb.,20.
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C.
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D.
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【单选题】---Bear in mind that you won't be able to cancel the contract ____you've signed. --- I _____.
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相关题目：
【单选题】Which statement doesn't violate the 7C's principles?
A.
We export machines to many foreign countries.
B.
Your letter  has been receivered recently.
C.
We won't send goods to you until 10th March.
D.
We are glad to inform you that the goods under Contract No.235 were shipped on S.S. "East Wind" on Feb.,20.
查看完整题目与答案
【简答题】请通过电子税则 或电子查询手册 找到编码 “0105.99” ,对应的二级子目条文 “ 其他 ” 共包括( )种家禽?请用小写数字回答。
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【单选题】if Mr. White won't agree to sign the contract, ( )
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C.
neither will she
D.
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【单选题】Remember that you won't be able to cancel the contract ____you've signed.
A.
before
B.
until
C.
once
D.
though
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【单选题】What could happen if the specifications are accepted by CQC's business partner?
A.
CQC will have to sign a new contract.
B.
The prices of steel screws could be raised.
C.
The products will be delivered by container.
D.
Damages won't happen any more.
查看完整题目与答案
【简答题】请通过电子税则找到编码“0105.99”,对应的二级子目条文“其他”共包括( )种家禽?请用小写数字回答。
查看完整题目与答案
【单选题】Which statement doesn't violate the 7C's principles?
A.
We export machines to many foreign countries.
B.
Your letter  has been receivered recently.
C.
We won't send goods to you until 10th March.
D.
The goods under Contract No.235 were shipped on S.S. "East Wind" on Feb.,20.
查看完整题目与答案
【单选题】听力原文：M: Sophia, I' ve just confirmed our flight online, and it looks like we'll be delayed by an hour. The flight is now scheduled to leave at 4:00 due to the heavy wind. W: Then we' re in trouble. We...
A.
3:00
B.
4:00
C.
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D.
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【单选题】---Bear in mind that you won't be able to cancel the contract ____you've signed. --- I _____.
A.
unless; do
B.
since; will
C.
once; will
D.
after; have
查看完整题目与答案
【简答题】请通过电子税则找到子目“0105.99”,对应的二级子目条文“其他”共包括( )种家禽?请用小写数字回答。
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