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【简答题】
Replace the underlined words with the correct form of the words and expressions. around the corner as a general rule at heart deep down infinitely in the distance My best friend lives very near me , which is great, as it means that we see each other a lot. My replacement: _________________________ 2. Mostly , the British prefer to own their property rather than rent it. My replacement: _________________________ 3. I pretended not to feel sad at leaving home, but in my heart I had a terrible feeling of sadness. My replacement: _________________________ 4. The prospect of going to summer camp was far more exciting than staying at home. My replacement: _________________________ 5. Far away we could see Oxford, the spires of the colleges rising into the sky. My replacement: _________________________ 6. Although my sister enjoys having a career, it's obvious that really she's a home-loving woman whose real desire is to make her husband and children happy. My replacement: _________________________
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【单选题】在常压下苯的沸点为80.1°C,环己烷的沸点为80.73°C,欲使该两组分混合物得到分离,则宜采用( )。
A.
恒沸精馏
B.
普通精馏
C.
萃取精馏
【单选题】在常压下苯的沸点为80.1°C,环己烷的沸点为80.73°C,欲使两组分混合液得到分离则宜采用( )。
A.
恒沸精馏;
B.
普通精馏;
C.
萃取精馏;
D.
水蒸气精馏
【单选题】在常压下苯的沸点为80.1°C,环己烷的沸点为80.73°C,欲使该两组分混合物得到分离,则宜采用
A.
恒沸精馏
B.
普通精馏
C.
萃取精馏
D.
水蒸气蒸馏
【多选题】下列哪些属于餐厅服务满足客人的求美心理()
A.
餐厅环境优美
B.
餐厅背景音乐优美
C.
餐具优美
D.
菜肴造型优美
【简答题】压力加工的基本生产方式有 、 、 、 和 。
【判断题】应该以混凝土的抗压强度标准值来划分混凝土强度等级
A.
正确
B.
错误
【单选题】在常压下苯的沸点为80.1°C,环己烷的沸点为80.73°C,欲使该两组分混合液得到分离则采用( )。
A.
恒沸精馏
B.
普通精馏
C.
萃取精馏
D.
水蒸气精馏
【单选题】在常压下苯的沸点为80.1°C,环己烷的沸点为80.73°C,欲使该两组分混合液得到分离,则宜采用( )。
A.
恒沸精馏
B.
普通精馏
C.
萃取精馏
D.
水蒸气精馏
【简答题】压力加工的基本生产方式有轧制、挤压、拉拔、( )和板料( )等。
【判断题】.微生物大多耐冷不耐热。
A.
正确
B.
错误
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