介词without的用法比较多样,下面学习啦小编为大家归纳相关的用法:<br>一、without的基本用法<br>1.(用在no,not,never等否定副词之后,强调肯定)没有……不,没有……则不能……,每……必定…….如:<br>You can't get rich without taking risks.人不冒险不富.<br>The old man cannot walk without a stick.那位老先生离开手杖就走不了路.<br>Don't go out without a coat:you'll catch your death.别不穿外套出去,会得重感冒的.<br>2.(表否定)没有,无,不需.如:<br>The letter was posted without a stamp.那封信没贴邮票就寄出去了.<br>We got there without any trouble.我们到了那儿,一路上没遇到任何麻烦.<br>You'll get wet if you go out in the rain without an umbrella.雨天外出不带伞会淋湿的.<br>3.(表条件)若无,若非.如:<br>I don't like to go to a country without knowing something of the language.我要是不懂得一点那个国家的语言,就不想到那个国家去.<br>Without water,we cannot live.没有水,我们就活不了.<br>Can you see without your glasses?你不戴眼镜能看得清东西吗?<br>4.(与-ing形式连用)不,无,没.如:<br>She entered the room without knocking.她没敲门就进了房间.<br>They had to stand for hours without changing position.他们得一动不动地站几个小时.<br>It wasn't very polite of you to serve yourself without asking.你也不问一声就自己吃起来是不太礼貌的.<br>二、without作表语的用法<br>without引出的介词短语通常用作状语,但有时
药物流产第二天肚子疼是正常的,药物流产常用的药物是米非司酮配伍米索前列醇,一般是前两天口服米非司酮,作用是阻断孕酮的作用,软化宫颈,便于第三天口服米索前列醇后宫颈口更容易开。在口服米非司酮的过程中,不会出现阴道流血及排出孕囊,但是有10%的早孕患者,在服用米非司酮后会出现流血、下腹坠胀或自然流产。米非司酮也有一定的药物不良作用,比如恶心、呕吐、下腹坠胀、阴道流血等,在口服米非司酮的过程中,有或者没有腹痛都是正常的。对于有腹痛明显并且阴道流血超过月经量的患者,特别注意观察有没有孕囊的排出,如果有孕囊排出自己不能确定,或者阴道出血量多于月经量,建议及时到医院就诊。