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【单选题】属于原小檗碱型异喹啉类生物碱的是

A.
麻黄碱
B.
小檗碱
C.
汉防己甲素
D.
苦参碱
E.
莨菪碱

【单选题】I was at a gas station the other day, filling up my tank with gas. The owner of the little establishment was hovering nearby, and someone handed him some bills, remarking, "You probably prefer getting...

A.
the convenience store workers need more training
B.
the legislation will help reduce the murders in the convenience store
C.
paying with credit card may help cut the murders during robberies in the convenience store
D.
the price of the petrol has risen rapidly

【单选题】No one really likes help. It is a great deal more satisfactory to be given the opportunity to earn one’’s daily bread; and if, by so doing, one can create a continuing means of livelihood, more jobs, ...

A.
develop types of fruit trees that will resist disease
B.
extend the area of land fit for cultivation
C.
remove or flatten out the tops of hills
D.
provide food for farm animals

【单选题】Passage One Questions 26 to 28 are based on the passage you have just heard.

A.
Because Americans are proud of their own country
B.
Because flags go up everywhere with an abundant sense of patriotism
C.
Because the feeling of safety provided by two mighty oceans is now gone
D.
Because fear goes alongside everywhere with a new sense of patriotism