【单选题】为英文单词选择正确的汉语解释。 note down
【单选题】在多普勒效应模型中,若一架飞机以v=400m/h的速度飞向一观察者,观察者静止不动,若飞机发射声波的频率fs=1,声速vs=757m/h,那么观察者接收到的声波频率为( )
【单选题】Section ADirections: In this section, you will hear 8 short conversations and 2 long conversations.At the end of each conversation,one or more questions will be asked about what was said. Both the con...
A.
Because the woman want to write something about Apollo 11.
B.
Because the woman doesn't want to continue her former paper topic
C.
Because the woman has found an interesting job.
D.
Because the woman showed him some pictures on her thesis.
【单选题】Section A Directions: In this section, you will hear 8 short conversations and 2 long conversations. At the end of each conversation, one or more questions will be asked about what was said. Both the ...
A.
She conducted the classical chapters pretty well.
B.
The chapters she composed and conducted were all in harmony.
C.
She composed the harmonious chapters by herself.
D.
The classical chapters composed by her were in harmony.
【单选题】Section A Directions: In this section, you will hear 8 short conversations and 2 long conversations. At the end of each conversation, one or more questions will be asked about what was said. Both the ...
A.
They prefer to carry cash when traveling abroad.
B.
They usually carry many things around with them.
C.
They would rather travel around than stay at home.
D.
They don't like to spend much money on traveling
【简答题】阅读理解。 Several years ago, my family gathered on Cape Cod for a weekend. My parents were there, my sister and her daughter too, two cousins and, of course, my wife, my son and me. We ate at one of those...
【多选题】栅格显示的快捷键是()光标捕捉的快捷键是()
【简答题】Complete the form: Write ONE WORD for each answer. Blanks 1 through 4 are based on the following conversation. What will the first robot do during the operation? 1 the materials. Who will be called in...