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【多选题】
合理膳食的基本卫生要求包括A.
无毒、无致病微生物或有毒物质污染
B.
保证供应必需的热能与营养素，且比例恰当
C.
合理加工烹调，提高消化吸收率
D.
感官性状良好，能满足饱腹感
E.
合理的膳食制度，三餐定时定量，比例合适
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【单选题】Google and Microsoft have approached the market using quite different business models. Over time, they have engaged in multi-point competition. Which of the following best describes this competition t...
A.
They have very divergent corporate strategies.
B.
They are an example of co-opetition in action.
C.
They are largely competing in mobile device operating systems.
D.
They compete for market share in several different product categories.
【单选题】Y-△降压启动控制线路中,将电动机定子绕组接成△时的正确连接方式( )。
A.
U1与W2、V1与U2、W1与V2
B.
U1与U2、V1与V2、W1与W2
C.
U1与V2 、V1与U2、W1与W2
D.
U1与W2、V1与V2、W1与U2
【简答题】对 x 赋值,从 5 到 25 ,间隔是 0.1 ,应该写成( )
【简答题】常用的烷基化剂是 、 两种,另外醇、醛、酮也可作为烷基化剂。
【单选题】根据GB50343一2004《建筑物电子信息系统防雷技术规范》中的5.1.2“需要保护的电子信息系统必须采取等电位连接与接地保护措施”这一条款是()
A.
指导性条款
B.
一般需要执行的条款
C.
推荐性条款
D.
强制性条款
【单选题】Which of the following would be a determinant as to what people find stressful?
A.
Personality.
B.
Education.
C.
Marital status.
D.
Shoe size.
【单选题】Which of the following is an example of how U. S. online matchmakers have adapted their business models to better serve customers from other cultures?
A.
inviting parents to fill out profiles for their children in India
B.
emphasizing the goal of finding true love in Scandinavia
C.
eliminating profiles in Japan
D.
lowering the cost of subscription in China
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