【单选题】Qustions 8 to 11 are based on the conversation you have just heard.
A.
It enables her to improve her pronunciation.
B.
It helps her better remember what she learns.
C.
It turns out to be an enjoyable way of learning.
D.
It proves to be far more effective than writing.
【单选题】Qustions 8 to 11 are based on the conversation you have just heard.
A.
It keeps her mind active.
B.
It makes her stay awake.
C.
It enables her to think hard.
D.
It helps her kill time.
【单选题】Qustions 8 to 11 are based on the conversation you have just heard.
【简答题】变压器利用_____作用,把一种电压的交流电能转变成频率相同的另一种电压的交流电能。
【单选题】Qustions 8 to 11 are based on the conversation you have just heard.
A.
She types on a keyboard.
【简答题】变压器利用 作用,把一种电压的交流电能转变成 相同的另一种电压的交流电能。
【简答题】看天气预报回答问题? 1、用到哪些学到的传感器? 2、把什么物理量转换成电量参数? 3、电阻传感器?
【单选题】变压器利用________作用,把一种电压的交流电能转变成频率相同的另一种电压的交流电能。