【多选题】下列关于会计账簿的登记要求,说法正确的有( )。
B.
库存现金日记账和银行存款日记账只需每月结出余额,不必每日结出余额
C.
如果发生账簿记录错误,不得刮擦、挖补或用褪色药水更改字迹
【多选题】What did Henry II do in his reign?
A.
He built up a great empire which included England and most of France.
B.
He built the Tower of London.
C.
He reformed the courts and the laws.
D.
He built the marvelous Westminster Abbey.
E.
He introduced the jury system and institutionalized the common law throughout the country.
F.
He signed the Magna Carta.
【单选题】关于σ键和π键的比较,下列说法不正确的是( )
B.
σ键是“头碰头”式重叠,π键是“肩并肩”式重叠
D.
H原子只能形成σ键,O原子可以形成σ键和π键
【单选题】What did Henry Ford do?
B.
was the first to make cars in America
C.
revolutionized the assembly-line production of cars
D.
popularized expensive hand-built cars
【单选题】假定所有变量均已正确定义,则下列程序段运行后y的值是 int a=0,y=10; if(a=0) y--; else if(a>0) y++; else y+=y;
【单选题】下列关于 σ 键和 π 键的说法不正确的是:
A.
共价键即可以是 σ 键,也可以是都是 π 键
D.
p 轨道和 p 轨道之间既可形成 σ 键 , 也可形成 π 键
【单选题】下列关于σ键和π键的说法不正确的是...... ( )
D.
p 轨道和 p 轨道之间既可形成 σ 键 , 也可形成 π 键
【多选题】What did the author do in his first hour in Central Park?
A.
wandered around the Delacorte
B.
climbed the steps of Belvedere Castle
C.
peeked through the windows of the Henry Luce Nature Observatory
D.
identified the herbs in the Shakespeare Garden
【单选题】关于 σ 键和 π 键的比较,下列说法不正确的是 ( )
B.
. σ 键是 “ 头碰头 ” 式重叠, π 键是 “ 肩并肩 ” 式重叠
D.
. H 原子只能形成 σ 键, O 原子可以形成 σ 键和 π 键