【简答题】用比较级或最高级填空 1. China is the third ______ (large) country in the world. 2. This girl works____ (hard) among the three. 3. Beijing is the second _____ (large) city in China. 4. Xiao Ming is ____ (young) ...
【简答题】State the different meanings of the word "power" in the following sentences. 1 . By power we mean the rate of doing work. 2. Pulleys and belts are widely used to transmit power. 3. This is a telescope...