问题
单项选择题
假设某国M产品只由甲、乙两家企业提供，售价为10元，2011年，甲企业生产500万件，乙企业生产400万件。2012年，甲乙企业的劳动生产率都提高一倍，在其他条件不变的情况下，M产品的价格和社会总价值分别是（）
A．5元9000万元
B．10元9000万元
C．5元18000万元
D．10元18000万元
答案
参考答案：A
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假设某国M产品只由甲、乙两家企业提供，售价为10元，2011年，甲企业生产500万件，乙企业生产400万件。2012年，甲乙企业的劳动生产率都提高一倍，在其他条件不变的情况下，M产品的价格和社会总价值分别是（）
A．5元9000万元
B．10元9000万元
C．5元18000万元
D．10元18000万元
参考答案：A
| 选用表格内的单词，用其正确形式填空。 | |
Restaurant 1. have to know how to make food. They also have to know how to make money. Here are some things they've learned from 2. studies. The color red makes people 3. . Red also makes customers eat faster. Many fast food restaurants, therefore, have red furniture or walls. Soft colors like pink and light blue make people 4. , so they spend more time 5. their meals. Soft lighting makes people look good, but it makes food look bad. Loud music may be nice 6. first, but it soon makes people want 7. . Hard seats also make customers want to eat quickly and leave. Many restaurants, 8. fast food restaurants, use this knowledge to make customers eat 9. . Customers only sit for about 20 minutes before they leave. Because customers don't stay very long, small restaurants can 10. many people every day. |