方程的两边同乘x（x+2），得：3（x+2）=5x，
解得：x=3．
检验：把x=3代入x（x+2）=15≠0．
故原方程的解为：x=3．
Some students lose marks in reading comprehension (阅读理解) _____ because they don't read the question
carefully. [ ]
A. nearly
B. simply
C. hardly
D. almost
鼓风机的风力范围为( )。
A．小于0.35 B．小于0.3 C．小于0.2 D．小于0.15
