引起石油旋光性的原因,在于其有机化合物分子结构中具有()
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The total quantity of oil discharge into the sea()for existing tankers 1/15000 of the total quantity of the particular cargo or which the residue formed a part().
A. does not exceed
B. should exceed
C. should be up to
D. should be no more tha
名医()创编了“五禽戏”
A. 李时珍
B. 华佗
C. 张仲景
D. 扁鹊
虽然白居易赞扬刘禹锡的石头城妙绝千古,后人不复为词,但是杜牧夜泊秦淮之际仍然可以留下千古名篇,宋代某位诗人曾经填词吟咏金陵,名扬天下,结尾也曾引用杜牧其诗,该宋人是谁?