whether：
whether/whether or not/whether…or not都表示是否
E.G：
Whether or not this idea can be put into practice is still not sure.
I asked him whether he had done it all himself or whether someone had helped him.
I want to know whether it’s good news or not.
Whether/or表示是A还是B，没有否的意思。Whether，or二者都是连词，可以省略不需要严格对称，只要or连接的内容可以与前面的某部分内容平行就行，如：
E.g：He asked me whether I wanted to go there by train or by bus.
A. which引导的定语从句修饰其前面的toys，但逻辑上是Television programs developed in conjunction with the marketing of toys这个事件prohibited by federal regulations，A错误。
B. Television programs developed in conjunction with the marketing of toys是一个完整的句子，a practice that federal regulations once prohibited, is thriving in the free market conditions permitted by the current Federal Communications Commission是另外几个句子，两个句子之间缺少连词，B错误。
C. as 引导的状语从句缺少主语，C错误。
D. they指代不明，regulations or programs? D错误。
but可以做副词，表示仅仅，只有，如：
we can but try.我们可以小试一下。
There were a lot of famous people there: Tom Hanks and Julia Roberts, to name but two.只提其中两个人吧。
Trenton, New Jersey, is but one of a large number of communities. T只是很多个社区中的一个。
A. A and B attest 对
B. A and the painting of B attests 错
C. A and B attests 错
D. The finding of A and the painting of B attests 错
E. The finding of A and B attest 错
D. Correct. This choice does not weaken the argument. The higher likelihood that one is involved in an automobile accident in the U.S. actually has no bearing on the higher rate of severe injury among passengers who are involved in automobile accidents. That is, the rate itself is a proportion of the total number of passengers involved in accidents rather than the number itself. This rate would remain the same whether 10 accidents or 10 million accidents occurred.
As is the case with traditional pharmacies，with介宾作定语修饰case，表同位关系；as the case is，就像传统药店的例子一样
As with the case of traditional pharmacies,with介宾只能看成是利用了主句结构的省略，主句的介宾是rely on prescriptions，替换成rely with the case of traditional pharmacies，语意错误
通常是没有as with the case of 这个用法的。
- it doesn't make sense to use 'each' AFTER the comma, because it's not true that each structure was connected with a road system. instead, the road system connected all of the structures with each other, which is nowhere close to the same thing. (having 'each' BEFORE the comma makes sense, because it's actually true that each of the structures comprised up to 600 rooms.)
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楼下小姐姐正解
key takeaway
A is 100 times as old as B. 正确
A is 100 years older than B. 正确
A is 100 years as old as B. 错误