以下属于文件包含的函数为 A: include() B: require() C: include_once() D: require_once()

PHP中 下列哪些函数在引入脚本时报错,仍继续执行() (4分) A: include B: include_once C: equire D: equire_once

PHP中，要将一个文件内容导入另一个文件中，若被导入文件不存在，要出现错误提示，但相同文件允许在同一页面多次导入，则可以使用（ ）函数来完成。 A: include B: require C: include_once D: require_once

同时: all at once|all once|at all once|at once

The manager ordered the work ______. A: start at once B: to be started at once C: to start at once D: at once started

He ordered the work (). A: started at once B: to be started at once C: to start at once D: at once start

The phrase "once in a blue moon" in last line refers to______. A: all at once B: once for a long time C: once in a while D: once and for all

How often will the woman correct the students’ assignment A: Once a week. B: Once two weeks. C: Once a month. D: Once three weeks.

Michael was always late for class, but that day he, _______ , came much earlier than usual. A: for once B: at once C: once D: once again

Riddle: What is it that occurs once in a second, once in a month, once in a century, yet not at all in a year or a week?