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If you want to study abroad, have you thought about where to live? I've been living and studying in Canada for about nine months. AS I'm still too young to rent an apartment by myself, I live with a homestay faminly and I feel like I'm part of it. The first time I had a homestay was in 2013. During that time, I stayed in Ajax, a town in Canada, for a week and lived with a homestay family. Carlton lives with his nephew and his niece-in-law. Carlton drove me to an international school to learn about Canadian culture every morning, and he picked me up in the afternoons. Our leisure time was in the evening. The meals he made for me were delicious and we usually watched a movie after dinner. All experiences left an unforgettable impression on me, even if I didn't live there for a long time. I'm now living with a Hungarian(匈牙利)family with another Chinese boy. There are two family members---Mrs. Perger and her son, Robert. I've already lived here for nine months and I have been deeply moved by many things they've done. Once, my roommate went running and didn't come back for quite a long time. Mrs. Perger called him, bu he didn't answer the phone. She began to worry about him, and was even about to cry. However, living with a homestay family also has its disadvantages, especially when living with a foreign family. The biggest challenge for me has been the totally different lifestyle, which took me a long time to get used to. Living with a homestay family has given me a lot of new experiences. It has taught me how to communicate with different people. Moreover, when different lifestyles and cultures meet together, I have seen that the spark(火花) they make are spectacular(壮观的).
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【单选题】对于()的毛坯应采用精密铸造、精锻、冷挤压等新工艺,使切削余量大大减少、从而可缩短加工的动机时间。
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葡萄糖激酶
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丙酮酸激酶
B.
葡萄糖激酶
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磷酸果糖激酶毁
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磷酸烯醇式丙酮酸羧激酶
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磷酸化酶激酶
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氧化磷酸化反应
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丙酮酸脱氢酶催化
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批量较大
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