“找客戶實(shí)操過(guò)程”見(jiàn)面課中提到的谷歌搜索引擎優(yōu)化，是的以下哪個(gè)縮寫(xiě)？（）

If you will send us a catalog by air,we shall（）very much.

We wih to acknowledge receipt of your letter of March 15,（）reached us yesterday.

We hope that you wil look（）the cause of the defective goods.

We have established an irrevocable letter of credit（）your favour with the Bank of China,Guandong．

We trust the mentioned shipment will reach you（）sound condition.

（）you know,this is a popular brand,which can see easily in our market.

Risks other（）All Risks and War Risk can be covered if the extra pr－ enium should be borne by the buyer.

Our foreign trade policy is based（）equality nad mutual benefit.

We（）some brochurs（）to illustrate the procucts we manufactured.