
粗骨料压碎指标中压力试验机示值相对误差是多少()
A.1%
B.0.1%
C.2%
D.3%


A.1%
B.0.1%
C.2%
D.3%
II. Fill in theblanks with proper prepositions:
1. We arepleased to receive your offer _____ the subject goods now available ____export.
2.If yourshirts agree______ the taste of our market, we feel confident _____ placing atrial order with you.
3.We confirmmaking you the following firm offer this morning _____ 200 metric tons ofgroundnuts, subject _____ your reply reaching here _____ the end of this week.
4.Consideringthe long business relationship _______ us, we have decided to offer you aspecial discount ______ 5% ______ an order ______US$ 5000.
5.____ yourinformation, we have been overwheimed with inquiries ____ buyers in differentcountries, and expect to conduct business ______our level.
6. In view_____ what was mentioned above, we shall suggest _____ your interest that youmay take full advantage ________ the market.
7. If yourprice were reduced _____10%, we would place a substantial order _____ yourLaser Printer.
8.Althoughwe are ____ urgent need of such product, we find your price too high and out ofline ____ the prevailing market level.
对于两种资产组成的投资组合,有关相关系数的叙述正确的有( )。