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【简答题】
“正襟危坐”的“危”的意思是 。
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举一反三
【判断题】食品添加剂和营养强化剂的品种和使用量应符合 GB 2760 《食品安全国家标准 食品添加剂使用标准》和 GB 14880 《食品安全国家标准 食品营养强化剂使用标准》的规定。 （ ） prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
A.
正确
B.
错误
【单选题】听力原文： I'm going to pass this piece of amber around so you can see this spider trapped inside it. It's a good example of amber-inclusion, one of the inclusions that scientists are interested in these d...
A.
So they can feel its weight.
B.
So they can examine its contents.
C.
So they can guess its age.
D.
So they can admire its beautiful color.
【判断题】阅读判断 Welcome to Jiajia Hotel! I’d like to introduce the hotel surroundings to you. There is a supermarket near our hotel. If you want to go to the supermarket, just go down the road, and take the firs...
A.
正确
B.
错误
【判断题】阅读判断 Welcome to Jiajia Hotel! I’d like to introduce the hotel surroundings to you. There is a supermarket near our hotel. If you want to go to the supermarket, just go down the road, and take the firs...
A.
正确
B.
错误
【简答题】（）是脂肪酸β-氧化关键的限速酶。
【判断题】食品添加剂和营养强化剂的使用品种和使用量应符合GB 2760《食品安全国家标准 食品添加剂使用标准》和GB 14880《食品安全国家标准 食品营养强化剂使用标准》的规定;不得添加国家法律、法规、食品安全国家标准规定之外的任何物质
A.
正确
B.
错误
【单选题】A: I have no idea where to go in the Spring break. Got any suggestions? B: I'm not sure. ______
A.
I'd go for some brochures in the travel agency.
B.
If you have money, you can go anywhere.
C.
I'm not going anywhere in particular.
D.
I'd appreciate it if you can consult the ads in the papers.
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