妊娠合并心脏病,下列哪项不是预防心衰的方法 A.积极治疗贫血 B.限制食盐的摄入 C

题型:单项选择题

问题:

妊娠合并心脏病,下列哪项不是预防心衰的方法

A.积极治疗贫血
B.限制食盐的摄入
C.防治呼吸道感染
D.常规服用洋地黄
E.充足睡眠,每日保证10小时睡眠

考点:临床执业助理医师妇产科学妊娠合并症
题型:单项选择题

根据卫生部《健康相关产品命名》规定,消毒产品的名称应由商标名(或品牌名)、()、()三部分组成。

题型:单项选择题

用外力将单位正电荷从无限远的一点移到电场内某一点,外力克服电场力所做的功,叫该点的()。

A、电压

B、电位

C、电压降

D、电动势

题型:单项选择题

放射性131I甲状腺摄取率正常值为吸碘高峰一般在()h,最高不超过()%。

题型:单项选择题

Asynchronous Transfer Mode (ATM) is a (16) that promises to change the fabric of local and wide area communications.

The key advantage of ATM is the capability to move voice, data, graphics and (17) at speeds of up to 2 gigabits per second.

An ATM switch allows you to create a (18) network that is completely independent from the (19) configuration of the network.ATM uses a (20) called cell switching to convert data into fixed length cells of 53 bytes each, so they can be switched very quickly and efficiently.

(18)是()

A. technology

B. video images

C. logical

D. physical

题型:单项选择题

如果所测得的绝缘电阻值较上次测量的数值降低()时,则认为绝缘不良。

A.1/2~1/3;

B.1/3~1/5;

C.1/5~1/7;

D.1/7~1/9。

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