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【单选题】
Which of the following is NOT a true description of the Queen’s role?A.
The Queen selects the Prime Minister and the Cabinet.
B.
The Queen symbolizes the tradition and unity of the British state.
C.
The Queen acts as a confidante to the Prime Minister.
D.
The Queen is the temporal head of the Church of England.
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举一反三
【单选题】Which of the following distinguishes a "straight-line" production possibilities curve from one that is "bowed out"?
A.
A straight-line production possibilities curve exhibits increasing opportunity costs, whereas a bowed production possibilities curve does not.
B.
A straight-line production possibilities curve exhibits decreasing opportunity costs, whereas a bowed production possibilities curve does not.
C.
A straight-line production possibilities curve exhibits constant opportunity costs, whereas a bowed production possibilities curve does not.
D.
A straight-line production possibilities curve is upward sloping, whereas a bowed production possibilities curve is not.
【简答题】合成镇痛药主要有()、()、()、()等几大类。
【单选题】现代药理研究表明八角茴香具有()等作用,因此,近年来其作为重要医药原料倍受关注,是某药业有限公司抗流感药物达菲合成前体莽草酸的主要原料。
A.
抗菌、镇痛、抗病毒
B.
抗菌、利尿、抗癌
C.
抗菌、抗病毒、保肝利胆
D.
强心、抗菌、抗病毒
E.
抗炎、镇痛、升高体温
【单选题】If a river flows directly into the sea，the baseline shall be a straight line across ______ between points on the low-water line of its banks．
A.
outer limit of the territorial sea
B.
limit of the territorial sea
C.
breadth of the territorial sea
D.
the mouth of the river
【单选题】______ a river on land, an ocean current does not flow in a straight line.
A.
Alike
B.
Like
C.
Likewise
D.
Likely
【简答题】全合成镇痛药主要有（）、（）、（）、（）等结构类型。
【单选题】A line of position derived from a loran reading is a section of a(n) ______.
A.
straight line
B.
arc
C.
parabola
D.
hyperbola
【简答题】乙酰水杨酸(俗称阿司匹林)是一种常见的解热、消炎、镇痛药物．以苯为主要原料，通过下图所示途径可以制取阿司匹林和冬青油 请按要求回答： (1)请写出有机物的结构简式： A________；B________；C________. (2)写出变化过程中①、⑥的化学方程式(注明反应 条件) 反应①_____________________________； 反应⑥____________________...
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