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【简答题】
Translate the paragraph into Chinese. In the United States, the vast majority of Americans live with people to whom they are related by blood or marriage. Most American couples have two or three children, though larger families are not unusual. Typically, the family consists of parents and their minor children. Middle-aged and elderly people generally do not live with their married children. However, parents usually keep in close contact with their grown children. On holidays, members of the larger family group — grandparents, aunts, uncles and cousins — often dine together. In the past, very few people would have liked living with their parents beyond childhood. But recently, more and more young American people have been returning home after graduating from college. Some of them decide to stay home and save money while working hard toward the day they can establish a home of their own. This is a practical decision, as so much work — academic and professional — is needed today in order to become self-sufficient.
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【单选题】某地磁差资料为:Var. 0°40'E(1989),2'.5W annually,则该地1999年的磁差为 。
A.
0°15'E
B.
1°05'E
C.
0°15'W
【单选题】某地磁差资料为:Var. 0°40'W(1979),2'.5W annually,则该地1999年的磁差为 。
A.
1°05'W
B.
1°30'W
C.
1°30'E
D.
0°10'E
【单选题】某地磁差资料为:Var.0°40′W,(1997),2′.5W annually,则该地2007年的磁差为:
A.
1°05′W
B.
1°30′W
C.
1°30′E
D.
0°10′E
【单选题】某地磁差资料为:Var. 0°40'W(1989),2'.5W annually,则该地1999年的磁差为 。
A.
0°15'E
B.
0°15'W
C.
1°05'E
D.
1°05'W
【多选题】根据国务院《科学技术档案工作条例》规定,科技档案的保管期限,分为()三种。
A.
永久
B.
长期
C.
定期
D.
短期
E.
视情况而定
【判断题】轴承承受的载荷越大,配合越紧。
A.
正确
B.
错误
【单选题】某地磁差资料为:Var. 0°40'W(1989),2'.5W annually,则该地1999年的磁差为 。
A.
0°15'E
B.
0°15'W
C.
1°05'W
【单选题】根据《科学技术档案工作条例》:科技档案工作必须按 ( ) 实行统一管理。
A.
原则
B.
规范
C.
专业
D.
管理制度
【单选题】国务院《科学技术档案工作条例》规定,各单位应当按照()管理科技档案的基本原则,建立、健全科技档案工作,达到科技档案完整、准确、系统、安全和有效利用的要求。
A.
分级
B.
集中统一
C.
根据实际情况
D.
集中统一与分级结合
【单选题】某地磁差资料为:Var. 0°40'E(1989),2'.5W annually,则该地1999年的磁差为 。
A.
0°15'E
B.
1°05'E
C.
0°15'W
D.
1°05'W
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