题目内容
（请给出正确答案）
Before the first non-stop flight made in 1949, it ________ necessary for all planes to land for refueling.
A) would be B) has been
C) had been D) would have been
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A.pour
B.splash
No more than twenty years passed () laser was first invented.
A、after
B、since
C、before
D、when
, it ________ necessary for all planes to land for refueling.
A) would be B) has been C) had been D) would have been
A、cute
B、timid
C、aggressive
D、tentative
A.assemble
B.assembly
C.assembled
D. assembling
A.When introducing two males or two females, put the younger persons name first
B.Men dont have to take off their gloves before shaking hands
C.When a man and a woman are to shake hands, it is the man who extends his hand first
D.When introductions are made, start with first names, then add some descriptive notes
段落翻译： Before you make up your mind about which way to go, take a hard, honest look at your motivation for starting a company. Too many people are looking to get rich, escape the corporate grind, and work shorter hours with more free time. None of those reasons is likely to lead to success. If you are focused on solving a customer problem or need, believe you can do what you do better than anyone else, dying to work long hours, wear many hates, and juggle endless responsibilities, then you have the right startup mindset. You also need certain personality traits. One of them is a willingness to work very hard all by yourself, at least for the first year or so (and possibly longer).
听力原文： Some students at the Open University left school 20 years ago. Others are younger but all must be at least 21 years old. This is one example of how the Open University is different from all other universities. Its students must either work full-time or be at home all day, for instance, mothers of families. They do not have to pass any examinations before they are accepted as students. This is why the university is called "open". The university was started in order to help a known group-people who missed having a university education when they were young.
The first name for the Open University was "The University of the Air". The idea was to teach "on the air", in other words, on radio and television. Most of the teaching is done like this. Radio and television have brought the classroom into people's homes. But this, on its own, is not enough for a university education. The Open University student also receives advice at one of 283 study centers in the country. 36 weeks of the year he has to send written work to a "tutor", the person who guides his studies. He must also spend 3 weeks every summer as a full-time student. Tutors and students meet and study together, as in other universities. At the end of the Open University's first year, the results were good. Three out of every 4 students passed their examinations. If they do this every year, they will finish their studies in four or five years.
(33)
A．Because the students have to pass all examinations before entering it.
B．Because there is no examination before they are accepted as students.
C．Because there is no gate.
D．Because it never closes.
