皮皮学，免费搜题
登录
搜题
【单选题】
说:“爱人者,人恒爱之;,人恒敬之。“交往礼仪是社会成员在互相往来中的行为规范和待人处事的准则。下列选项中,不符合交往礼仪基本要求的是____A.
仪容仪表整洁端庄
B.
言谈举止真挚大方
C.
服装饰物搭配得体
D.
表情姿态自然舒展
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】Who’s Really Addicting You to Technology? A. “Nearly everyone I know is addicted in some measure to the Internet,” wrote Tony Schwartz in The New York Times. It’s a common complaint these days. A stea...
【简答题】For all the dinner table, a glass of milk seems to be a constant , at least it was when I was growing up．It was widely believed that milk was integral in building strong bones and teeth. There’s no do...
【简答题】For all dinner tables, a glass of milk seems to be a must. At least it was when I was growing up. It is widely believed that milk is a must in building strong bones and teeth. There’s no doubt that da...
【单选题】下列浓度为 0.1 mol·L -1 的溶液,可用 0.1 mol·L -1 HCl 标准溶液准确滴定的是
A.
NaAc ｛已知 pK a (HAc)=4.75 ｝
B.
羟胺 (pK b = 8.04 )
C.
苯甲胺 (pK b =4.67)
D.
苯甲酸钠｛已知 pK a ( 苯甲酸 ) = 4.21 ｝
【多选题】常温下，用 0.1 mol·L —1 HCl溶液滴定10.0 mL浓度为0.1 mol·L —1 Na 2 CO 3 溶液，所得滴定曲线如图所示。下列说法正确的是
A.
当V＝0时：c(H ＋ )＋c(HCO 3 － )＋c(H 2 CO 3 )＝c(OH － )
B.
当V＝5时：c(CO 3 2— )＋c(HCO 3 － )＋c(H 2 CO 3 )＝2c(Cl － )
C.
当V＝10时：c(Na ＋ )＞c(HCO 3 － )＞c(CO 3 2— )＞c(H 2 CO 3 )
D.
当V＝a时：c(Na ＋ )＞c(Cl － )＞c(H ＋ )＝c(OH － )
【简答题】What do you think of stress? Is it a good thing or a bad thing? Most of the students think stress can do harm (伤害) 46 them in some ways. There’s a story about a ager in a middle school. He even 47...
相关题目：