一弹簧振子作简谐振动,当位移为振幅的一半时,其动能为总能量的()。 A.1/4  B

题型:单项选择题

问题:

一弹簧振子作简谐振动,当位移为振幅的一半时,其动能为总能量的()。

A.1/4 

B.1/2 

C. 

D.3/4

考点:注册土木工程师岩土工程基础知识注册岩土工程师基础考试上午试题
题型:单项选择题

— Is your school far from your home?

— Yes.It       me an hour       home.

A.takes; to walk

B.take; walking

C.took; to walk

D.is taking; walk

题型:单项选择题

We considered a list of the best American books. Here are five that may help accurately show the national character. Most from a century or so ago, they still entertain, teach, and inspire:

Moby-Dick by Herman Melville

First published in 1851, the adventure stories of Captain Ahab and his monomaniacal(偏执的) pursuit of the white whale draw us into a universe full of fascinating characters and stories.

The Education of Henry Adams by Henry Adams

Published in 1918, the book was an autobiography. Born in one of America’s most famous political families, Adams provides insight into his family, including his experience as private secretary to his father, minister to England during the American Civil war.

Leaves of Grass by Walt Whitman

When Whitman published Leaves of Grass in 1855, he wanted to accurately describe the American experience and reflect the great changes in the American literary world that had taken place during his lifetime.

Poems by Emily Dickinson

An enthusiastic poet whose works have had considerable influence on modern poetry, Dickson’s frequent use of dashes, occasional capitalization(大写) of nouns, and unconventional metaphors(隐喻) have contributed to her reputation as one of the most inventive poets of the 19th century American literature. However, most of her poems were not published during her lifetime.

The Song of Hiawatha by Henry Wadsworth Longfellow

First published in 1855, this is Longfellow’s most popular and most recognized poem, the heroic life and death of a magic American Indian, sent by the Great Spirit to guide the nations in the ways of peace.

小题1:Walt Whitman wrote Leaves of Grass in order to _______.

A.show his talent and heroic life to us

B.draw us into a fascinating universe

C.provide insight into his family

D.reflect the great changes in the American literary world小题2:If you want to read a story about a magic American Indian, you can read _______.

A.Moby-Dick

B.The Song of Hiawatha

C.Poems

D.Leaves of Grass小题3:Which statement is TRUE according to the passage?

A.Because the five books are from a century or so ago, they can’t teach and inspire us.

B.Herman Melville was considered as one of the most inventive poets of the 19th century American literature.

C.The Education of Henry Adams is a non-fiction book.

D.Of the five books, Moby-Dick was published last.小题4:Why did the author write the passage?

A.To introduce several best American books to readers.

B.To make an advertisement for a book store.

C.To tell stories of several famous writers.

D.To talk about some knowledge about literature.

题型:单项选择题

胎龄28周的早产儿,出生体重1050g,生后有呻吟、吐沫,并进行性加重,拍胸片示:双肺透光度低,毛玻璃样,可见支气管充气征。查体:早产儿貌,反应差,全身皮肤青紫,鼻翼扇动,三凹征阳性,双肺呼吸音低。心率160次/分。

若患儿ROP筛查病变眼底筛查时发现有血管区与无血管区嵴隆起,见少许瘢痕组织样纤维增生,未突入玻璃体。该患儿为早产儿视网膜病变的第几期()

A.1期

B.2期

C.3期

D.4期

E.5期

题型:单项选择题

伤亡事故经济损失的评价指标包括( )。

A.死亡人数和百万元产值经济损失率
B.千人经济损失率和百万元产值经济损失率
C.死亡人数和千人经济损失率
D.工作损失价值和死亡人数

题型:单项选择题

作为著作权限制方式“法定许可”内容之一的转载、摘编,仅限于( )。

A.报纸、期刊转载或摘编广播电台、电视台已经播放的作品

B.报纸、期刊转载或摘编图书的内容

C.图书转载、摘编报刊上的已发表作品

D.报纸、期刊之间相互转载、摘编作品

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