若,则a与b的值是()。 A.b≠0,a为任意实数 B.a≠0,b=0 C.a=1,

题型:单项选择题

问题:

若,则a与b的值是()。

A.b≠0,a为任意实数

B.a≠0,b=0

C.a=1,b=0

D.a=0,b=0

考点:注册电气工程师电气工程公共基础注册电气工程师(供配电)公共基础
题型:单项选择题

内服或注射给药治疗鼻塞的处方药是()
内服给药治疗过敏性鼻炎的处方药是()
内服给药治疗过敏性鼻炎的非处方药是()
内服给药治疗鼻塞的非处方药是()

A.头孢菌素

B.阿昔洛韦

C.特非那定

D.氯雷他定

E.复方伪麻黄碱制剂

题型:单项选择题

甲同学用80N的力推着小车在水平面上做匀速运动,则小车受到的阻力 ______80N;乙同学用100N的力推着小车在水平面上做加速运动,则小车对乙的作用力 ______100N.(均选填“大于”“小于”或“等于”)

题型:单项选择题

Singles Day falls on every November 11th, and as the name indicates, this relatively new holiday is one exclusively for people who are still living the single life. I was a bit surprised when I googled “Singles Day” on the Internet, to find that China is the only country in the world that has set aside a special day for singles to celebrate their lives. To find out more about this celebration, please read on.

An old story goes that once there were four single men, leading very boring lives. None of them were married, or had lovers, or did anything exciting. They just sat around all day and played Mahjong.

One day they played Mahjong from 11 in the morning until 11 at night. During the game, no matter who won, the winning card was always the “four columns” card (the card shows four independent, parallel columns in two lines). Even more of a coincidence, it was Nov 11, or 11/11. In order to commemorate the day, they nicknamed it Singles Day.

Singles Day was first celebrated at various universities in Nanjing, capital city of Jiangsu Province during the 1990s. It got the name Singles Day because the date consists of four “ones”. These college students have since graduated, and carried their university tradition into society. Singles Day is now a special day for all fashionable youths.

The main way to celebrate Singles Day is to have dinner with your single friends, but it’s important that each person pay their own fee to show their independence. People also hold “blind date” parties in an attempt to say goodbye to their single lives.

Many singles also choose to say goodbye to their single lives on this day. Many attend “blind date” parties and many people choose to marry on this day. In addition to meaning “single” the four “ones” of the date can also mean “only one” as in “the only one for me.” Some people will use this date and this meaning to tell their special someone that they are the only “one” in their heart.

小题1:Singles Day got its name because _______.

A.the persons who play Mahjong are four singles

B.the date consists of four “ones”

C.only single persons celebrate the day

D.it was first celebrated at universities in Nanjing小题2:Which of the following is wrong?

A.Singles Day was first celebrated in Nanjing’s universities.

B.Many singles choose Singles Day to say goodbye to their single lives.

C.The only way to celebrate the Singles Day is to have dinner with your single friends.

D.It was these college graduated students that carried their university’s tradition into society.小题3:We can infer from the passage that ______.

A.the four singles did not get married

B.Singles Day receives great popularity among young people

C.when having dinner, one pays the fee for all his friends

D.on Singles Day many attend parties where blind people were present小题4:What is the best title for the passage?

A.The Origin of Singles Day.

B.How to Celebrate Singles Day.

C.Singles Day.

D.Say Goodbye to Singles Day.

题型:单项选择题

柔嫩艾美尔球虫寄生于()。

A、小肠前段

B、小肠后段

C、小肠中段

D、育肠

题型:单项选择题

女性,55岁。高血压20年,不规律服药,某日晨起突发头痛,意识不清,30分钟后送到医院。查体:昏迷,血压210/120mmHg,双眼向右侧凝视,左足外旋位。

下列辅助检查对明确诊断最有价值的是()

A.腰穿检查

B.脑电图检查

C.脑超声检查

D.头颅CT检查

E.开颅探查

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