【单选题】某儿童认为周围世界绕着他转,月亮跟着他走;他只知道自己有个哥哥,但不知道自己就是哥哥的弟弟。该儿童心理发展所处的阶段是( )
【单选题】SECTION B PASSAGES Directions: In this section, you will hear several passages. Listen to the passages carefully and then answer the questions that follow. 听力原文: A few months ago, millions of people i...
A.
One of the bridges between North and South London collapsed.
B.
The heart of London was flooded.
C.
An emergency exercise was conducted.
D.
100 people in the suburbs were drowned.
【单选题】两个同频率正弦交流电压u 1 、u 2 的有效值各为60 V和80 V。当u=u 1 +u 2 的有效值为140 V时,u 1 和u 2 的相位差是( )
【简答题】( )1. —Jimmy , the 2014 FIFA World Cup is coming.Do you know ______ the first match will be on? —On June 13th. A.how B.where C.why D.when ( )2. —It’s so late.Why not write the report tomorrow? —But I ...
【单选题】If you are going to buy your family members some gifts where will you most likely go?
【简答题】Time spent in a bookshop can be enjoyable. If you go to a ___36___shop, no assistant will come near to you and say “Can I help you? ” You ____37____buy anything you don’t want. You may try to ___38___...
【单选题】某儿童认为周围世界绕着他转,月亮跟着他走;他只知道自己有个哥哥,但不知道自己就是哥哥的弟弟。该儿童心理发展所处的阶段是( )
【简答题】Fill in the blanks according to the context. A: Immigration officer B: Tourist A: Good afternoon, sir. May I see your passport, please? B: Of course. Here you are. A: What’s your purpose of your...
【单选题】两个同频率正弦交流电压 u 1 、 u 2 的有 效值各为30V和50V。当 u 1 + u 2 的有效值为80V时, u 1 与 u 2 的相位 差是 ( )
【单选题】两个同频率正弦交流电压 u 1 、 u 2 的有 效值各为40V和30V。当 u 1 + u 2 的有效值为50V时, u 1 与 u 2 的相位 差是 ( )