1。the manufacture of (automobile) was (extremely) expensive (until) assembly-line techniques (made) them cheaper to produce.
答案是A
2。Recently in the automobile industry, multinational companies (have developed) to the point where (such few) cars can be described as (having been made) (entirely) in one country.
答案是B
3。The unit of (measurement) known as a “foot” (has) originally based on the average size of the human (foot)
答案是B
以上的问题真的搞到我头都晕 |