Q1:
Although she had been known as an effective legislator first in the Texas Senate and later in the United States House of Representatives, not until Barbara Jordan’s participation in the hearings on the impeachment of President Richard Nixon in 1974 was she made a nationally recognized figure, as it was televised nationwide.
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After more than four decades of research and development, a new type of jet engine is being tested that could eventually propel aircraft anywhere in the world within two hours or help boost cargoes into space at significantly lower costs than current methods permit.
A. tested that could eventually propel aircraft anywhere in the world within two hours or help
B. tested that could eventually have the capability of propelling aircraft anywhere in the world within two hours or to help
C. tested, eventually able to propel aircraft anywhere in the world within two hours, or helping
D. tested, and it eventually could propel aircraft anywhere in the world within two hours or helping
E tested, and it could eventually have the capability to propel aircraft anywhere in the world within two hours or helpQ28:
Fossils of the arm of a sloth found in Puerto Rico in 1991, and dated at 34 million years old, made it the earliest known mammal of the Greater Antilles islands.
管位东的语法题讨论参考:http://forum.chasedream.com/dispbbs.asp?boardID=23&ID=56794&page=1
13-1中A-as it was的it指代不清,如果指代participation的话,则逻辑不通;这道题讨论过,可以查一下;
6-支持你的观点;
28-支持你的观点;
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