皮皮学，免费搜题
登录
搜题
【单选题】
在挤出法制粒中制备软材很关键,其判断方法为( )A.
手捏成团，重按即散
B.
手捏成团，轻按即散
C.
手捏成团，重按不散
D.
手捏成团，轻按不散
E.
捏成团，按之不散
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】What are the duties of tour guides?
【单选题】What are NOT the job contents of the local guides on the way of the tour group to the hotel?
A.
Deliver a welcome speech;
B.
Make adjustments on the coach when there is a problem of jet lag;
C.
Perform well for the first route guide.
D.
Getting familiar with extended cultural knowledge related to the scenic spot.
【单选题】What are the basic principles in the use of the tour guides language?
A.
correct
B.
clear
C.
vivid
D.
formal
【单选题】What are tour guides made up of?
A.
Tour leader
B.
National tour
C.
Local guide
D.
All the answers
【简答题】设已调信号表达式为 。其中 , (a)计算 的调幅度。 (b)若 是 信号,求其调频指数和传输带宽。 (c)若 是 信号,求峰值相位偏移调相指数。 (d)设 被馈入 负载,计算负载上的平均功率。
【简答题】Translation: Please translate the following sentences. 1. Tour guides are responsible for daily contract with tour companies, hotels, restaurants and vendors.
相关题目：