猪肉大葱馅饺子，其中猪肉含量30%，净重500克

It came as a great ____ to the parents that their son finally came back safe and sound. [ ]

A. favor

B. sense

C. relief

D. relaxation

“细胞小，细胞壁薄，细胞核大，细胞质浓，具有很强的分裂增生能力”，这是植物中哪一种组织的特点[ ]

A．保护组织    

B．分生组织  

C．输导组织    

D．营养组织

What advantages do you think London ________other cities in hosting the 30th Olympic Games?[ ]

A. takes of  

B. has over

C. takes up  

D. gets over

什么是灵敏板？

（）is the way to deliver goods for different shippers in the same truck by the most economic route.

A.Joint Distribution  

B.United Distribution   

C.Multiple Delivery  

D.Joint Delivery