人体最大的消化腺是
A．肝B．胆囊C．胰腺D．腮腺E．脾
参考答案：A
We have ______ homework to do every day.
A. too much B. too many C. much too
Learning foreign languages calls for your memory, time, patience and emotions. _______,it is not a simple thing.
A．As a result
B．In conclusion
C．In general
D．After all
