This is ________ apple, and that is ____

题型:选择题

问题:

This is ________ apple, and that is ________ orange.

A.a; a

B.a; an

C.an; an

D.an; a

考点:不定冠词(a,an)定冠词(the)零冠词
题型:选择题

在磁共振基本原理中,“停止射频脉冲,振动的质子处于不同的相位,横向磁化逐渐消失至原磁化量的37%,所需时间”称为()

A.弛豫

B.纵向磁化

C.横向磁化

D.纵向弛豫时间(T1

E.横向弛豫时间(T2

题型:选择题

.下列成语中与“未雨绸缪”蕴涵同一哲学道理的是  

A.未艾方兴

B.未卜先知

C.未焚徙新

D.未可厚非

题型:选择题

College sports in the United States are a huge deal. Almost all major American universities have football, baseball, basketball and hockey programs, and (1) millions of dollars each year to sports. Most of them earn millions (2) as well, in television revenues, sponsorships. They also benefit (3) from the added publicity they get via their teams. Big-name universities (4) each other in the most popular sports. Football games at Michigan regularly (5) crowds of over 90, 000. Basketball’s national collegiate championship game is a TV (6) on a par with any other sporting event in the United States, (7) perhaps the Super Bowl itself. At any given time during fall or winter one can (8) one’s TV set and see the top athletic programs--from schools like Michigan, UCLA, Duke and Stanford-- (9) in front of packed houses and national TV audiences.

The athletes themselves are (10) and provided with sch61arships. College coaches identify (11) teenagers and then go into high schools to (12) the country’s best players to attend their universities. There are strict rules about (13) coaches can recruit--no recruiting calls after 9 p. m. , only one official visit to a campus--but they are often bent and sometimes (14) . Top college football programs (15) scholarships to 20 or 30 players each year, and those student-athletes, when they arrive (16) campus, receive free housing, tuition, meals, books, etc.

In return, the players (17) the program in their sport. Football players at top colleges (18) two hours a day, four days a week from January to April. In summer, it’s back to strength and agility training four days a week until mid-August, when camp (19) and preparation for the opening of the September-to-December season begins (20) During the season, practices last two or three hours a day from Tuesday to Friday. Saturday is game day. Mondays are an officially mandated day of rest.

3()

A.directly

B.indirectly

C.apart

D.indirect

题型:选择题

如果目标区域已有数据,则数据移动后,将插入在原目标区域之前。

题型:选择题

城市污水处理厂,平流式沉砂池的设计最小流速应为()m/s。

A.0.15

B.0.3

C.0.6

D.1.0

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