某化合物完全燃烧,需要4.8g氧气,同时只生成4.4gCO2和2.7gH2O则该化合物中含有__________元素,化学式是____________.
碳、氢、氧 ;C2H6O
当要进行______处理操作时,应该使用宏而不是VBA。
A.在首次打开数据库时,执行一个或一系列操作
B.数据库的复杂操作和维护
C.自定义过程的创建和使用
D.一些错误处理
An investor buys a 15-year, 10 percent annual pay coupon bond for $1000. He plans to hold the bond for 5 years while reinvesting the coupons at 12 percent. At the end of the 5-year period he feels he can sell the bond to yield 9 percent. What is the expected realized (horizon) yield()
A. 10.0%.
B. 11.8%.
C. 11.2%.