(2013·山东济南二模)The poem A Red, Red Rose written by Robert Burns is popular with the Chinese young people, because the poem is easy ________.

A．to be understood

B．to understand

C．understand

D．understanding

大树移植植后养护的主要措施包括（）等。

A、支撑树干

B、浇水、追肥

C、包裹树干、根系保护

D、搭遮荫棚