按要求回答下列问题 (1)KHSO4溶液显________性(填“酸”“碱”或“

题型:填空题

问题:

按要求回答下列问题

(1)KHSO4溶液显________性(填“酸” “碱” 或“中性”),其原因是(用电离方程式表示)_________________;

(2) KHCO3溶液显________性(填“酸” “碱” 或“中性”),其原因是(用离子方程式表示)____________________; 

(3) 将上述两溶液混合,离子反应方程式为___________________。

(4)在Na2CO3溶液中滴入酚酞,溶液变红。若在该溶液中再滴入过量的BaCl2溶液,所观察到的现象是________________,其原因是(以离子方程式和简要文字说明) ____________________________________________。

考点:盐类水解判断溶液酸碱性或比较溶液pH值的大小离子方程式电离方程式
题型:填空题

瘀血证中出现疼痛,其性质一般为()

A.刺痛

B.胀痛

C.隐痛

D.绞痛

E.空痛

题型:填空题

如图所示,在x<0与x>0的区域中,存在磁感应强度大小分别为B1与B2的匀强磁场,磁场方向垂直于纸面向里,且B1>B2。一个带负电的粒子从坐标原点O以速度v沿x轴负方向射出,要使该粒子经过一段时间后又经过O点,B1与B2的比值应满足什么条件?

题型:填空题

患者女,61岁,戴上颌义齿1天,摘戴义齿时困难。查:缺失。黏膜支持式可摘义齿。唇、颊侧基托边缘伸展至黏膜转折,前牙区牙槽骨较突。引起摘戴困难的原因是()。

A.力大,义齿下沉

B.义齿支持不足,压迫黏膜

C.基托伸展过长,刺激黏膜转折处

D.基托进入倒凹区

E.基托不密合,翘动引起

题型:填空题

李先生为某事业单位在职职工,现有存款10万元,每月日常支出约为2000元,家庭月收入5000元。现看中一套价值40万元的房子,准备购买。作为李先生的置业投资顾问,可以帮李先生作如下分析:

如果公积金贷款的最高额度为8万元,其余采用抵押贷款,贷款年限均为10年,则每月的总还款额为( )元(公积金贷款年利率为4.26%,抵押贷款年利率为5.04%)。

A.3785

B.3158

C.2338

D.2980

题型:填空题

Are teens and young adults more narcissistic (自恋的) today than in the past That’s the view of a California researcher who studies (1) people.

In her new book, The Narcissism (2) : Living in the Age of Entitlement, psychologist Jean Twenge of San Diego State University and (3) W. Keith Campbell of the University of Georgia say research shows (4) young people today have "narcissistic traits" than in (5) generations. Such traits, Twenge says, include a very. (6) and inflated sense of self, which is (7) by a preoccupation with MySpace, Facebook and YouTube.

"We’ve been on this self-admiration cultural (8) for a long time," Twenge says. (9) Twenge’s take on today’s young people isn’t universal. Studies by other researchers, including Canadian (10) Dr. Kali of the University of Western Ontario, have used the same data but found (11) results. "They put a different (12) on it," Kali says.

Twenge’s studies have found more narcissistic traits and a (13) rate of increase among college students today, but Kali found that students’ narcissism was (14) greater in 2006 than in 1976. Twenge’s most recent paper studied the same data as Kali--more than 20 000 college students from 2002 to 2007. (15) researchers used the Narcissistic Personality Inventory to measure narcissistic (16) and findings by both have been (17) in peerreviewed journals.

Twenge’s book (18) just a month after The Mirror Effect : How Celebrity Narcissism Is Seducing America, a book co-written by behavioral (19) Drew Pinsky, (20) suggested that a celebrity-obsessed culture is causing more narcissism.

16()

A.tendencies

B.addictions

C.hobbies

D.fascinations

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