一平面简谐波的波表达式为y=Acos(Bt-Cx),式中A、B、C为正值恒量,则()

题型:单项选择题

问题:

一平面简谐波的波表达式为y=Acos(Bt-Cx),式中A、B、C为正值恒量,则()。

A.B为波的频率,为波长

B.为波的频率,为波长

C.为波的频率,为波长

D.为波的频率,为波长

考点:注册土木工程师港口与航道工程注册土木工程师(港口与航道工程)——普通物理
题型:单项选择题

奥美拉唑属于()

A.CYP3A4抑制剂

B.CYP3A4诱导剂

C.CYP2C19底物药物

D.CYP1A2底物药物

E.CYP2D6抑制剂

题型:单项选择题

我们如果去朝拜四大圣山,多照一些相、多往功德箱里放钱就够了吗?怎么做才真正有意义?你以后会这样做吗?

题型:单项选择题

来源于胎盘种植部位的滋养细胞肿瘤是()

A.持续性葡萄胎

B.再次葡萄胎

C.侵蚀性葡萄胎

D.绒癌

E.胎盘部位滋养细胞肿瘤

题型:单项选择题

For many people today, reading is no longer relaxation. To keep up their work they must read letters, reports, trade publications, interoffice communications, not to mention newspapers and magazines: a never ending flood of words. In (1) a job or advancing in one, the ability to read and comprehend (2) can mean the difference between success and failure. Yet the unfortunate fact is that most of us are (3) readers. Most of us develop poor reading (4) at an early age, and never get over them. The main deficiency (5) in the actual stuff of language itself—words. Taken individually, words have (6) meaning until they are strung together into phrases, sentences and paragraphs. (7) , however, the untrained reader does not read groups of words. He laboriously reads one word at a time, often regressing to (8) words or passages. Regression, the tendency to look back over (9) you have just read, is a common bad habit in reading. Another habit which (10) down the speed of reading is vocalization—sounding each word either orally or mentally as (11) reads.
To overcome these bad habits, some reading clinics use a device called an (12) , which moves a bar(or curtain) down the page at a predetermined speed. The bar is set at a slightly faster rate (13) the reader finds comfortable, in order to "stretch" him. The accelerator forces the reader to read fast, (14) word by word reading, regression and subvocalization practically impossible. At first (15) is sacrificed for speed. But when you learn to read ideas and concepts, you will not only read faster, (16) your comprehension will improve. Many people have found (17) reading skill drastically improved after some training. (18) Charlie Au, a business manager, for instance. His reading rate was a reasonably good 172words a minute (19) the training; now it is an excellent 1,378 words a minute. He is delighted that how he can (20) a lot more reading material in a short period of time.

A.enabling
B.leading
C.making
D.indicating

题型:单项选择题

阅读下面短文,回答下 * * 道题。

喝 茶

前回徐志摩先生在平民中学讲“吃茶”——并不是胡适之先生所说的“吃讲茶”——我没有功夫去听,又可惜没有见到他精心结构的讲稿,但我推想他是在讲日本的“茶道”,而且一定说得很好。茶道的意思,用平民的话来讲,可以称作“忙里偷闲,苦中作乐”,在不完全的现世享乐一点美与和谐,在刹那间体会永久,是日本之“象征的文化”里的一种代表艺术。关于这一件事,徐先生一定已有透彻巧妙的解说,不必再来多嘴,我现在所想说的,只是我个人的很平常的吃茶观罢了。

喝茶以绿茶为正宗.红茶已没有什么意味,何况又加糖——与牛奶葛半的《草堂随笔》确是很有趣味的书,但冬之卷里说及饮茶,以为英国家庭里下午的红茶与黄油面包是一日中最大的乐事,支那饮茶已历千百年,未必能领略此种乐趣与实益的万分之一,则我殊不以为然。红茶带“土斯”未始不可吃,但这只是当饭,在肚饥时食之而已;我的所谓喝茶,却是在喝清茶,在赏鉴其色与香与味,意未必在止渴,自然更不在果腹了。中国古昔曾吃过煎茶及抹茶,现在所用的都是泡茶,冈仓觉三在《茶之书》里很巧妙的称之曰“自然主义的茶”,所以我们所重的即在这自然之妙味。中国人上茶馆去,左一碗右一碗的喝了半天,好像是刚从沙漠里回来的样子,颇合于我的喝茶的意思(听说闽粤有所谓吃工夫茶者自然也有道理),只可惜近来太是洋场化,失了本意,其结果成为饭馆子之流,只在乡村间还保存一点古风,唯是屋字器具简陋万分,或者但可称为颇有喝茶之意,而未可许为已得喝茶之道也。

喝茶当于瓦屋纸窗之下,清泉绿茶,用素雅的陶瓷茶具,同二三人共饮,得半日之闲,可抵十年的尘梦。喝茶之后,再去继续修各人的胜业,无论为名为利,都无不可,但偶然的片刻优游乃正亦断不可少,中国喝茶时多吃瓜子,我觉得不很适宜,喝茶时可吃的东西应当是轻淡的“茶食”。中国的茶食却变了“满汉饽饽”,不是喝茶时所吃的东西了。日本的点心虽是豆米的成品,但那优雅的形色,朴素的味道,很合于茶食的资格。江南茶馆中有一种“千丝”。用豆腐干切成细丝,加姜丝酱油,重汤炖热,上浇麻油,出以供客,其利益为“堂倌”所独有.学生们的习惯,平常“千丝”既出,大抵不即食,等到麻油再加,开水重换之后,始行举著,最为合适,因为一到即罄,次碗即至,不遑应酬,否则麻油三浇,旋即撤去,怒形于色,未免使客不欢而散,茶意都消了。

日本用茶淘饭,名曰“茶渍”,以腌菜及“泽庵”(即福建的黄土萝卜,日本泽庵法师始传此法,盖从中国传去)等为佐,很有清淡而甘香的风味.中国人未尝不这样吃,唯其原因,非由穷困即为节省,殆少有故意往清茶淡饭中寻其固有之味者,此所以为可惜也。

第二段十画线句子“颇合于我的喝茶的意思”指的是()。

A.时间长这一点上合于作者的饮茶之道

B.有自然的妙味

C.真正起到了止渴的作用

D.没有饭馆子的味道

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