皮皮学，免费搜题
登录
搜题
【单选题】
在下列挤奶方法中错误的是 ( )A.
每次挤奶前洗净双手，选择舒适的体位
B.
大拇指和示指分开，分別放在乳头根 部 上下 2Cm 的乳晕处
C.
拇指和示指向胸壁方向用力下压
D.
挤奶约时间应该在 20 ～ 30 分钟
E.
依各个方向按照同样的方法压乳，使乳腺管内乳汁排出
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】Helen is the most conceited person I know. She thinks she knows everything and can do anything. According to her, she is an expert bowler, tennis player, swimmer, and soft-ball player. She tells every...
【单选题】Internet上有许多应用，其中特别适合用来进行远程文件操作（如复制、移动、更名、创建、删除等）的一种服务是___
A.
Email
B.
WWW
C.
Telnet
D.
FTP
【单选题】在DC C20/K-CHIEF 500监视与报警系统中，在分布式处理单元更换新DPU后主机故障，通过分析指示器的显示状态可判断出是应用程序未加载故障，故障最有可能的原因是（）。
A.
系统未工作
B.
DPU未初始化
C.
DPU本身有缺陷
D.
系统未复位
【简答题】管道的加工包括: 等过程。管道的连接主要包括 等方法。
【单选题】听力原文：We intend to send Yuki to America so that she can perfect her English which was learned in Japan. (29)
A.
Yuki can't speak English, so she needs to go to America.
B.
Yuki speaks English better than most Japanese do.
C.
Yuki will improve her English in America.
D.
Yuki will learn English in America instead of Japan.
【简答题】完型填空。 Every morning, Anne Ravenscroft gently wakes her daughter Heidi so that she can wash and dress her ready to start the day. Later, as she continues to 1 Heidi, Anne chats about the weather, the b...
【简答题】PLC 的硬件连接主要包括: 电源接线、 接线 、 通讯线及接地线等。
【单选题】is true friendship is that he or she would like to do all she can his or her friends when they are in trouble．
A.
What；help
B.
It；to help
C.
What；to help
D.
Which；help
相关题目：