D．irections:

Restrictions on the use of plastic bags have not been so successful in some regions. “White pollution ”is still going on. Write a letter to the editor(s) of your local newspaper to

1)give your opinions briefly and,

2) make two or three suggestions

You should write about 100 words. Do not sign your own name at the end of the letter. Use "Li Ming" instead. You do not need to write the address.(10 points)

[试题]Part AD．irections:Restrictions on the use of plastic bags have not been so successful in some regions. “White pollution ”is still going on. Write a letter to the editor(s) of your local newspaper to1)give your opinions briefly and,2) make two or three

[试题]Part A51. Directions:Restrictions on the use of plastic bags have not been so successful in some regions. “White pollution ”is still going on. Write a letter to the editor(s) of your local newspaper to1) give your opinions briefly and2) make two or th

[单选题,A1型题] 血红蛋白（pl=7.07）、鱼精蛋白（pl=12.20）、清蛋白（pl=4.64）、α1-球蛋白（pl=5.06）及β-球蛋白（pl=5.12），在pH值为4.9的溶液中进行电泳时，向正极泳动的蛋白质是（）A . 血红蛋白B . 全部都是C . 鱼精蛋白D . 清蛋白、α1球蛋白、β球蛋白E . 清蛋白

[单选题]Part BD．irections:D．irections: In the following text, some sentences have been removed. For Questions (41-45), choose the most suitable one from the list A-G to fit into each of the numbered blank. There are two extra choices, which do not fit in any

[主观题]G．iveawaytohelpthegiantpandasinthewild,please.__________________________________________________________________

[单选题,A2型题,A1/A2型题] 波Ⅰ～ⅥPL延长，且Ⅰ～ⅡⅡpL延长，则提示病变可能累及（）。A . 听神经颅外段B . 耳蜗核C . 听神经至脑干段D . 脑干内的听觉传导通路E . 听觉皮层

[名词解释] 升功率PL

[单选题]Farmers use water in many ways.______, they use water to grow crops.A.In fa

[单选题]Farmers use water in many ways. ________, they use water to grow crops.A.In

[单选题]It is of no use ______ about it, because he will never change his mind.A． to argueB． arguingC． arguedD． to have argued