According to the text, the ivory-billed woodpecker _____.
A. is extinct since the year of 1994.
B. was found by a group of 17 researchers through the internet.
C. is called "Grail Bird" because it is hallowed to the degree of holiness.
D. is so famous that it has become a symbol of the spoiled relationship between human beings and nature.
铺底流动资金一般应按流动资金的( )计算。
A. 30%
B. 25%
C. 20%
D. 15%
工程项目目标系统的表现是( )。
A. 并列结构
B. 整体结构
C. 并列层次结构
D. 递阶层次结构
Please be advised that we have instructed the Midland Bank to ________ a sight L/C in your favour.
A. make
B. effect
C. arrange
D. establish
微信支付 
支付宝支付