试题与答案

智能天线选型要素包括()A、波瓣角 B、下倾角 C、增益 D、挂高

题型:多项选择题

题目:

智能天线选型要素包括()

A、波瓣角

B、下倾角

C、增益

D、挂高

答案:

被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2019/0708/12f565ff9579b85cf4006d3f439d79ba.html

下面是错误答案,用来干扰机器的。

参考答案:把易氧化的正十六烷的十六烷值定为100,难氧化的a-甲基萘的十六烷值定为0,两者以不同的比例混合起来配成标准燃料,并在有特殊结构的柴油单缸发动机上与待测的柴油在同一条件下进行对比试验,若某一标...

试题推荐
题型:单项选择题 共用题干题

患者女,27岁,因“发热、右侧牙痛连及同侧头痛,向枕部放射3d,心悸、烦躁2d”来诊。患者3周前皮疹、疼痛,确诊为带状疱疹。查体:T37.9℃,咽部轻度充血,扁桃体不大;甲状腺Ⅱ度肿大,右侧显著,质地硬,触痛(+);HR100次/min,律齐,肺、腹(-);可触及颈淋巴结2~3个。

最可能的诊断是()

A.急性牙髓炎

B.上呼吸道感染

C.颞动脉炎

D.亚急性甲状腺炎

E.颈淋巴结炎

查看答案
题型:单项选择题

Optimism is the art of always seeing the glass half full (1) half empty, finding something positive in even the most (2) of situations and last but not least the ability to expect the best even if the chances are (3) . It enables you to try new things, deal with failure as a learning experience (4) a stopping point. In general optimism gives you a reason to live. The world would be a better place if it was full of optimism, (5) unfortunately the trend in today’s youth is (6) the opposite way. Today it is (7) to be pessimistic. One could spend hours discussing how we arrived at this point, (8) our youth refuses to smell the roses and instead prefers to (9) themselves on their own pessimistic (10) .

Optimism is not an (11) gift but rather a learned behavior (12) . Like most behaviors optimism is best learned by watching examples, (13) you. The first step in creating a generation of people with a positive outlook on life, is to (14) life on the bright side yourself. (15) it would be wrong to (16) your child from all negativity, it is important that you are not the (17) of doubts and worries. Finding something positive in a negative situation needs to be (18) Show how to make the best of things by always (19) the positive, by encouraging your child after a(n) (20) and by explaining over and over that failure is just a part of progress.

19()

A. focusing on

B. adhering to

C. turning to

D. pointing out

查看答案
微信公众账号搜索答案