简述食醋色、香、味的形成。

（I）方程4^x-2^x+2-12=0的解集是______；

（II）实数x满足log₃x=1+|t|（t∈R），则log₂（x²-4x+5）的值域是______．

机构中的运动副若为高副，指的是（）

A．回转副和齿轮副

B．移动副和齿轮副

C．回转副和移动副

D．齿轮副和凸轮副

申请设立期货公司，应当符合《中华人民共和国公司法》的规定，并具备（）等条件。

A．主要股东有期货投资经验

B．从业人员具有期货从业资格

C．有符合法律、行政法规规定的公司章程

D．注册资本最低限额为人民币3000万元

Last year, support for the social and behavioral sciences represented only about three percent of the government’s total budget for research funds in the United States. Thus, the particularly sharp reductions imposed on such programs this year seem dictated not by financial constraints but by social philosophy.
Which of the following is an assumption on which the conclusion of the passage above is based

A．The government funds allocated for research in the, social and behavioral sciences are not sufficient for the work that needs to be done.

B．The social and behavioral sciences are as valuable as the physical and biological sciences.

C．The current reductions will stop research in the social and behavioral sciences.

D．Government funding is the primary source of research money in the United States.

E．(E) Three percent is an insignificant portion of the government’s total budget for research funds.

北京的“四合院”、上海的“石库门”、广东的“围村”、陕西的“窑洞”、福建的“土楼，等民居建筑都与当地的自然环境息息相关，具有鲜明的地域文化特色，是中 * * 共有的文化财富。各具特色的地域文化（）

①决定于各地千差万别的自然条件

②蕴涵着中华文化的共性

③深受地理环境的影响和制约

④长期相互借鉴而日趋同一

A.①②

B.①④

C.②③

D.③④