下列关于do while…loop和do…loop until循环执行循环体次数的描述正确的是（）。

A:do while…loop循环和do…loop until循环至少都执行一次 B:do while…loop循环和do…loop until循环可能都不执行 C:do while…loop循环至少执行一次，do…loop until循环可能不执行 D:do while…loop循环可能不执行，do…loop until循环至少执行一次

When I was young, my parents ran a snack bar in our small town.One evening in early April, my mother told me to fill in at the snack bar (1) a worker who had the flu. I told her I would mess it up, (2) I had never worked at the bar before. I (3) that instead of making money, I would end up owing it."You can do it," said my mother," (4) , you won’t get much business until lunch. ""But I’ll never remember the orders, and I’m no good (5) money. Please, Mom, don’t (6) me."Then I’ll help you", she said.I shrugged my shoulders. I thought my mother’s (7) was a bad one, but I (8) .When I got to the bar the next day, I found my mother was (9) . Because the weather that day was rainy and cold, people wanted hot snacks and drinks. (10) , I was really slow at taking the orders and making change. The line of people grew, and everybody seemed (11) , I was so nervous that my hands shook, and I (12) a cup into pieces. What a mess! Then my mother came to (13) me, and she also showed me how to make (14) . If someone gave me $ 5 for something that cost $ 3.25, I handed over (15) quarters and a dollar and said, "75 cents makes four dollars, plus one dollar makes five. " Things went more (16) after that.By the end of the day, I could remember orders, (17) the bill, and make change quickly with a smile. I was even a little (18) when the sun came out and dried up business. My mother said she was proud of me, and when she (19) that I work at the snack bar again next year, I did not even shrug. I was too busy (20) the restaurant I would open one day.

A:because B:though C:until D:while

C++语言中while循环和do…while循环的主要区别是( )。

A:do…while的循环体至少五条件执行一次 B:while的循环控制条件比do…while的循环控制条件严格 C:do…while允许从外部转到循环体内 D:do…while的循环体不能是复合语句

下列关于do while...loop和do...100p until循环执行循环体次数的描述正确的是( )

A:do while...loop循环和do...loop until循环至少都执行一次 B:do while...100p循环和do...100p until循环可能都不执行 C:do while...100p循环至少执行一次，do...100p until循环可能不执行 D:do while...100p循环可能不执行，do...loop until循环至少执行一次

C++语言中while循环和do…while循环的主要区别是( )。

A:do…while的循环体至少五条件执行一次 B:while的循环控制条件比do…while的循环控制条件严格 C:do…while允许从外部转到循环体内 D:do…while的循环体不能是复核语句

下列关于do while...loop和do...100p until循环执行循环体次数的描述正确的是( )

A:do whil..loop循环和d..loop until循环至少都执行一次 B:do whil..100p循环和d..100p until循环可能都不执行 C:do whil..100p循环至少执行一次，d..100p until循环可能不执行 D:do whil..100p循环可能不执行，d..loop until循环至少执行一次

C语言中while和do-while循环的主要区别是______。

A:do-while的循环体不能是复合语句 B:while的循环控制条件比do-while的循环控制条件更严格 C:do-while允许从外部转到循环体内 D:do-while的循环体至少五条件执行一次

C++语言中while循环和do…while循环的主要区别是( )。

A:do…while的循环体至少五条件执行一次 B:while的循环控制条件比do…while的循环控制条件严格 C:do…while允许从外部转到循环体内 D:do…while的循环体不能是复合语句