【简答题】Task: Listen and retell. Remember the following speech by hierarchical chunks and set retrieval cues for these chunks while listening and retell it in source language. 03.课堂练习.seg 2.mp3 Tips: This seg...
【单选题】如图所示,为电动机正、反转控制线路,当电机正转时,要想改变其转向使电机反转,则正确的操作______。【图片】
B.
断开QS开关,使电机停转,然后再按下SBR反转按钮
C.
先按下SB1停止按钮,然后再按下SBR反转按钮
【简答题】While listening and noting down the mian points or details, one should use ________________ in ouline form and make sure the note is very ________________.
【单选题】----Can you think of another good idea? ----This is the best approach I can imagine ________ the work ahead of schedule.
【单选题】关于硝基呋喃类药物,哪项正确?( )
A.
在外科常用的有呋喃西林和呋喃妥因两种,价格昂贵
B.
在外科常用的有呋喃西林和呋喃妥因两种,多用于尿路感染
C.
在外科常用的有呋喃西林和呋喃妥因两种,可用于溶血性链球菌、大肠埃希菌所致的感染
D.
在外科常用的有呋喃西林和呋哺妥因两种,抗菌谱较广,多可口服。吸收快,属制菌剂,易产生耐药性
E.
在外科常用的有呋喃西林和呋哺妥因两种,属全天然制剂
【单选题】如图8-44所示,为电动机正、反转控制电路。当电动机已在正转,若此时按下反转启动按钮SB R ,则电机会______。
【单选题】My name is Jim Green. You can call me Mr._________.