甲状腺危象病人首选( ) A.利血平 B.安定 C.普萘洛尔 D.甲状腺片 E.复 发布时间:2017-07-28 04:18 │ 来源:www.tikuol.com 题型:单项选择题 问题: 甲状腺危象病人首选( )A.利血平B.安定C.普萘洛尔D.甲状腺片E.复方碘溶液
题型:单项选择题 已知数列{an}是等差数列,Sn为其前n项和,且满足S2=4,S5=25,数列{bn}满足bn=1an-an+1,Tn为数列{bn}的前n项和.(1)求数列{an}的通项公式;(2)若对任意的n∈N*,不等式λTn<n+8•(-1)n恒成立,求实数λ的取值范围;(3)是否存在正整数m,n(1<m<n),使得T1,Tm,Tn成等比数列?若存在,求出所有m,n的值;若不存在,请说明理由. 查看答案
题型:单项选择题 的面具有()A.4个三角嵴,5个点隙,3条发育沟B.4个三角嵴,4个点隙,4条发育沟C.4个三角嵴,3个点隙,5条发育沟D.5个三角嵴,2个点隙,5条发育沟E.5个三角嵴,1个点隙,4条发育沟 查看答案
题型:单项选择题 — What do you think of store shopping in the future? — Personally, I think it will exist along with home shopping but _____.A. will never replace B. would never replaceC. will never be replaced D. would never be replaced 查看答案