【判断题】When suppliers send goods to customers,there is usually a delivery note attached to the goods.
【单选题】对 do-while 语句描述正确的是 ( )。
A.
do-while 语句构成的循环可以使用 break 语句退出循环
B.
do-while 语句构成的循环必须使用 break 语句退出循环
C.
do-while 语句构成的循环 , 当 while 中的表达式值为非零时结束循环
D.
do_while 的循环体 可以 无条件执行 多次
【单选题】Usually, it is the shipper’s duty to ______ delivery of the goods on time and the consignee has to ______ delivery at the destination when the goods arrive.
【单选题】Message delivery is the communication method between objects. An object request services from another object by sending messages. A message usually includes: ________
A.
message-sender ’ s identification, operation name and necessary parameters
B.
the class names of message-sender and message-receiver
C.
message-receiver ’ s identification, operation name and necessary parameters
D.
the class name of the message-receiver
【判断题】根据负荷变化,采用压出管段阀门调节水系统流量的方法比较节能
【判断题】COD是表征水中还原性物质的综合性指标,也是有机污染物的综合指标。
【单选题】Renaissance is an extension of the Middle Ages, and is bridged by the Age of Enlightenment to modern history.
【判断题】Usually delivery is made within one month after receipt of your L/C. 通常在交货后的 一个月内能 收到你方信用证 。
【单选题】对 do-while 语句描述正确的是 ( )。
A.
do-while 语句构成的循环可以使用 break 语句退出循环
B.
do-while 语句构成的循环必须使用 break 语句退出循环
C.
do-while 语句构成的循环 , 当 while 中的表达式值为非零时结束循环
D.
do_while 的循环体 可以 无条件执行 多次
【单选题】The Age of Enlightenment, an intellectual movement advocating rationality, produced a great revival of satire in Britain.
A.
in the 13th and 14th century
B.
in the 15th and 16th century
C.
in the 17th and 18th century
D.
in the 19th and 20th century