皮皮学，免费搜题
登录
搜题
【多选题】
蹲姿中要注意，A.
弯腰捡拾物品时，不要两腿叉开、臀部向后撅起，这是最不雅观的姿态。
B.
不要突然下蹲， 不要离人太近。和他人同时下蹲时，更不能忽略双方的距离，以防彼此“迎头相撞”或发生其他误会。
C.
保持脊背挺直下蹲，上身挺拔。
D.
在他人身边下蹲时，不要和他人正面相向，或者背对他人下蹲。
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
【单选题】Up to now nobody able to do this better than Charlie Chaplin.
A.
is
B.
has been
C.
was
D.
will be
【简答题】在下列电路中,只有(
)属于组合逻辑电路。A. 触发器 B. 计数器 C. 数据选择器 D. 寄存器
【简答题】一、起运地 起运点:武汉 二、 目的地 目的地:辽宁沈阳 三、 运输对象和运输量 ◆ 运输对象 一批由武汉工厂发往辽宁沈阳的冬季最新款服装 ◆ 运输量 各类外套 2.3 万件,各类裤子 3 万条,另有鞋袜、丝巾等共 1.4 万件,每 200 件打包为一箱,每 300 条裤子打包一箱,每 100 件服饰打包一箱。每箱体积均为 0.6*0.6*1 立方米,此批货物总毛重 28 吨,体积 128 立方米...
【单选题】Charlie's Chainsaw Company has reason to believe that one of its models of saw is defective. A recall of all of the saws would cost more than $5 million, and would probably result in a loss in market ...
A.
Defective chainsaws can seriously injure or even kill the people who use them.
B.
Charlie's chief rival has recalled two of its products within the past year.
C.
Product recalls often result in a perception by customers that a given product is permanently defective, even after the defect has been remedied.
D.
The stocks of publicly traded companies that announce product recalls often drop upon the announcement, but they generally return to the pre-announcement level within 12 months.
E.
Three years ago a rival company went out of business because of large punitive damages awarded to a plaintiff who had been injured by a defective chainsaw.
【简答题】口服难吸收，用于肠道感染的药物是
相关题目：