What is the major drawback to the new luggage delivery services？
A. The pickup time is not scheduled.
B. Extra packaging is required.
C. Valuables are easily lost.
D. The price could be lower.
查看答案
Montgomery and Jones both have
A. taken part in a multi-million dollar bank fraud.
B. got charged with money-laundering.
C. told lies to the court about the fraud affair.
D. taken illegal performance-enhancing drugs.
Which of the following is CORRECT about the headmasters opinion？
A. William can make a comfortable living as an artist.
B. Mrs. Harris should persuade William to come down to earth.
C. Going to major art schools requires 3 A"s and 2 O"s.
D. Qualifications for going to key art schools are tough.
苯扎溴铵属于
A. 阴离子表面活性剂
B. 阳离子表面活性剂
C. 两性离子表面活性剂
D. 非离子表面活性剂
E. 高分子表面活性剂
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