48.乙胺丁醇治疗结核病时联合用药的主要目的是（ ）。
A. 促进药物进入细胞内
B. 延长药物半衰期
C. 延缓耐药性产生
D. 扩大药物抗菌范围
E. 减少不良反应
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35.化疗指数是（ ）。
A. ED90/LD10
B. ED50/LD50
C. LD90/ED50
D. LD50/ED50
E. LD95/ED5
For a sales transaction to be covered by the UN Convention on Contracts for the International Sale of Goods (CISG), the buyer and seller must have their places of business in different states, and: ( )
A. Both the buyer’s state and the seller’s state must be parties to the CISG.
B. Either the buyer’s state or the seller’s state must be a party to the CISG.
C. The rules of private international law must lead to the application of the law of a state that has become a contracting party of the CISG.
D. Either or C.
Either or C.
Which of the following is a legal issue regulated by the UN Convention on Contracts for the International Sale of Goods (CISG)? ( )
A. The competency of the contracting parties.
B. The formation of contracts.
C. The legality of a contract.
D. The liability of a party for death or personal injury.
E. The rights of third parties.
X agrees to ship 1 000 widgets from the United States for delivery to Y in Italy. X actually ships 1 500. According to the UN Convention on Contracts for the International Sale of Goods (CISG), Y may: ( )
A. accept the 1 500 widgets.
B. accept only 1 000 widgets.
C. reject all of the widgets.
D. All of the above.
Either or B.
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