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【单选题】

Directions: There are 20 blanks in the following passage. For each blank there are four choices marked A, B, C and D at the end of the passage. You should choose the ONE that best fits the passage. Then mark the corresponding letter on the Answer Sheet.
The first man who cooked his food, instead of eating it raw, lived so long ago that we have no idea who he was or where he lived. We do know, however, that (41) thousands of years food was always eaten cold and (42) . Perhaps the cooked food was heated accidentally by a (43) fire or by the melted lava from an erupting (44) . When people first tasted food that had been cooked, they found it tasted better. However, (45) after this discovery, cooked food must have remained a rarity (46) man learned how to make and light (47) .
Primitive men who lived in hot regions could depend on the heat of the sun (48) their food. For example, in the desert (49) of the southwestern United States, the Indians cooked their food by (50) it on a flat (51) in the hot sun. They cooked piece of meat and thin cakes of corn meal in this (52) . We surmise that the earliest kitchen (53) was a stick (54) which a piece of meat could be attached and held over a fire. Later this stick was (55) by an iron rod or spit which could be turned frequently to cook the meat (56) all sides.
Cooking food in water was (57) before man teamed to make water containers that could not be (58) by fire.
The (59) cooking pots were reed or grass baskets in which soups and stews could be cooked. As early as 166 B. C., the Egyptians had learned to make (60) . permanent cooking pots out of sand stone. Many years later, the Eskimos learned to make similar pans.

A.
in
B.
on
C.
through
D.
for
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参考解析:
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刷刷题刷刷变学霸
举一反三

【单选题】线切割加工利用的能量是( )

A.
光能
B.
化学能
C.
机械能
D.
电能和热能

【单选题】甲公司在城市公园旁开发预售期房,乙、丙等近百人一次性支付了购房款,总额近8000万元。但甲公司迟迟未开工,按期交房无望。乙、丙等购房人多次集体去甲公司交涉无果,险些引发群体性事件。面对疯涨房价,乙、丙等购房人为另行购房,无奈与甲公司签订《退款协议书》,承诺放弃数额巨大利息、违约金的支付要求,领回原购房款。经咨询,乙、丙等购房人起诉甲公司。下列哪一说法准确体现了公平正义的有关要求

A.
《退款协议书》虽是当事人真实意思表示,但为兼顾情理,法院应当依据购房人的要求变更该协议,由甲公司支付利息和违约金
B.
《退款协议书》是甲公司胁迫乙、丙等人订立的,为确保合法合理,法院应当依据购房人的要求宣告该协议无效,由甲公司支付利息和违约金
C.
《退款协议书》的订立显失公平,为保护购房人的利益,法院应当依据购房人的要求撤销该协议,由甲公司支付利息和违约金
D.
《退款协议书》损害社会公共利益,为确保利益均衡,法院应当依据购房人的要求撤销该协议,由甲公司支付利息和违约金

【单选题】女性40岁,确诊为浸润型肺结核最重要的治疗是

A.
卧床休息
B.
加强营养
C.
合理化疗
D.
预防咯血
E.
肝脏保护

【单选题】复合材料的基体材料应具备( )

A.
高硬度
B.
高强度韧性
C.
高弹性模量
D.
低强度韧性