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实验任务二 一、任务名称 熟悉PHP语言的基本语法。 二、 实验目标 1. 掌握 php 的语法结构 2. 掌握 php 的变量的定义 3. 掌握 php 的注释 4. 掌握 php 文件的后缀名 5. 能灵活使用 php 的文件的运行环境 三、 实验时间 第2,共1。 四、 实验内容及其要求 1.html 填空题复习 (1) 换行的 html 标签 ( ) (2) 字体加粗的 html 标签 ( ) (3) 段落的 html 标签 ( ) (4) 表格的 html 标签 ( ) (5) 字体的 html 标签 ( ) (6) 横线的 html 标签 ( ) (7) 空格的 html 标签 ( ) (9) 单元格的 html 标签 ( ) (10) 列表的 html 标签 ( ) (11) 列表项的 html 标签 ( ) 2.php 基本语法填空题 ( 1 ) php 的语法结构有( )种形式,分别为( )、( )、( ) ( 2 ) php 格式常采用( )格式 ( 3 ) php 的变量定义,前面要加一个( )符号 ( 4 ) php 注释,单行注释的格式( ) ( 5 ) php 注释,多行注释的格式( ) 3. 程序题改错题 ( 1 )判断下列程序题是否有错,有错的地方请纠正 int $a; ( ) $a=12; ( ) echo $a ( ) ( 2 )判断下列程序题是否有错,有错的地方请纠正 $a=12; ( ) $b=”12”; ( ) echo $a,$b; ( ) ( 3 )判断下列程序题是否有错,有错的地方请纠正 $str1=” 我是字符串 ”; ( ) $b=12; ( ) echo $a.
.$b; ( ) 4. 在 php 环境中,在站点文件下,新建一个目录取名 01, 在该目录下,新建一个网页取名 01.php 网页内容要求: ( 1 )定义个变量,取名 str ,赋值为“第一次使用 php 来编写网页
定义变量时比较特殊 , 采用 $ 符号” ( 2 )在网页中输出该变量 ( 3 )运行该网页 5. 在 01 目录中新建网页 02.php 网页要求: ( 1 )定义变量,取值为下列一首诗,要求每行诗歌下有一条横线,每条诗歌换行。 床前明月光 疑是地上霜 举头忘明月 低头思故乡 六、 实验支持条件与要求 个人电脑 七、 实验 标的物及考核评价标准 实验操作过程和结果截图
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【单选题】If the effective bearing area has been reduced , remedial action should be taken.
A.
by more than 5 percent
B.
by less than 10 percent
C.
to 95 percent
D.
to less than 90 percent
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【单选题】某投资者拟准备投资于一个投资额为20000元的A项目,项目期限4年,期望投资报酬率为10%,每年能获取现金流量7000元。则净现值为( )元。
A.
3000
B.
2189
C.
3500
D.
2500
查看完整题目与答案
【单选题】Regarding water availability in the infrastructure ___.
A.
more than 95 percent of the world’s population has running water
B.
many cities have old leaky pipes
C.
it is not important to economic development
D.
All of the above
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【单选题】对于结点电压法中的无伴电压源，下列叙述中，（    ）是错误的。
A.
可利用电源等效变换转化为电流源后，再列写结点电压方程
B.
可选择该无伴电压源的负极性端为参考结点，则该无伴电压源正极性端对应的结点电压为已知，可少列一个方程
C.
可添加流过该无伴电压源电流这一新的未知量，只需多列一个该无伴电压源电压与结点电压之间关系的辅助方程即可
D.
无伴受控电压源可先当作独立电压源处理，列写结点电压方程，再添加用结点电压表示控制量的补充方程
查看完整题目与答案
【简答题】对于结点电压法中的无伴电压源，下列叙述中，哪个是错误的：A. 可利用电源等效变换转化为电流源后，再列写结点电压方程；B.可选择该无伴电压源的负极性端为参考结点，则该无伴电压源正极性端对应的结点电压为已知，可少列一个方程；C.可添加流过该无伴电压源电流这一新的未知量，只需多列一个该无伴电压源电压与结点电压之间关系的辅助方程即可；D.无伴受控电压源可先当作独立电压源处理，列写结点电压方程，再添加用结点...
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【单选题】神经纤维动作电位的峰值接近于
A.
Na﹢与K﹢浓度差
B.
K﹢平衡电位
C.
Na﹢平衡电位
D.
Na﹢平衡电位与K﹢平衡电位之差
E.
Na﹢平衡电位与K﹢平衡电位之和
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【简答题】Fill in the blanks with prepositions or adverbs to make up idioms, phrasal verbs and fixed expressions. 5. More than 2.3 million comments have been received by the Forest Service with_____________ of ...
查看完整题目与答案
【单选题】神经纤维动作电位的峰值接近于
A.
Na + 与 K + 浓度差
B.
Na + 平衡电位
C.
K + 平衡电位
D.
Na + 平衡电位与 K + 平衡电位之差
E.
Na + 平衡电位与 K + 平衡电位之和
查看完整题目与答案
【简答题】已经漂白加工的羽毛
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【单选题】Which of the following, if true, would most weaken the argument of the critics of the Kyoto Protocol that implementing the protocol would be too costly?
A.
While it is true that the scientific community is not unanimously in agreement that global warming is occurring, more than 95 percent of climatologists at universities and government-funded laboratories in Europe and North America agree that global warmin
B.
Hybrid fuel-cell cars are less expensive to operate than conventional cars because of their much greater fuel efficiency, but it is unlikely that these operational savings will ever be able to cost-justify the much greater initial investment required to p
C.
Nuclear power, although completely flee of carbon emissions and comparable in operating cost to an oil-burning power plant, brings the added back-end cost of disposing of the spent nuclear waste, which is both radioactive and highly toxic.
D.
Although it is unfair in a sense to impose different emissions restrictions on different countries, it is only fair to impose the most restrictive limitations on countries whose advanced economic development will allow them to conform. to the regulations w
E.
One nation that switched the fuel of 35 percent of its power plants from coal to natural gas in order to reduce carbon dioxide emissions found that natural gas, although initially more expensive than coal, dropped in price to a level comparable to that of
查看完整题目与答案
相关题目：
【单选题】If the effective bearing area has been reduced , remedial action should be taken.
A.
by more than 5 percent
B.
by less than 10 percent
C.
to 95 percent
D.
to less than 90 percent
查看完整题目与答案
【单选题】某投资者拟准备投资于一个投资额为20000元的A项目,项目期限4年,期望投资报酬率为10%,每年能获取现金流量7000元。则净现值为( )元。
A.
3000
B.
2189
C.
3500
D.
2500
查看完整题目与答案
【单选题】Regarding water availability in the infrastructure ___.
A.
more than 95 percent of the world’s population has running water
B.
many cities have old leaky pipes
C.
it is not important to economic development
D.
All of the above
查看完整题目与答案
【单选题】对于结点电压法中的无伴电压源，下列叙述中，（    ）是错误的。
A.
可利用电源等效变换转化为电流源后，再列写结点电压方程
B.
可选择该无伴电压源的负极性端为参考结点，则该无伴电压源正极性端对应的结点电压为已知，可少列一个方程
C.
可添加流过该无伴电压源电流这一新的未知量，只需多列一个该无伴电压源电压与结点电压之间关系的辅助方程即可
D.
无伴受控电压源可先当作独立电压源处理，列写结点电压方程，再添加用结点电压表示控制量的补充方程
查看完整题目与答案
【简答题】对于结点电压法中的无伴电压源，下列叙述中，哪个是错误的：A. 可利用电源等效变换转化为电流源后，再列写结点电压方程；B.可选择该无伴电压源的负极性端为参考结点，则该无伴电压源正极性端对应的结点电压为已知，可少列一个方程；C.可添加流过该无伴电压源电流这一新的未知量，只需多列一个该无伴电压源电压与结点电压之间关系的辅助方程即可；D.无伴受控电压源可先当作独立电压源处理，列写结点电压方程，再添加用结点...
查看完整题目与答案
【单选题】神经纤维动作电位的峰值接近于
A.
Na﹢与K﹢浓度差
B.
K﹢平衡电位
C.
Na﹢平衡电位
D.
Na﹢平衡电位与K﹢平衡电位之差
E.
Na﹢平衡电位与K﹢平衡电位之和
查看完整题目与答案
【简答题】Fill in the blanks with prepositions or adverbs to make up idioms, phrasal verbs and fixed expressions. 5. More than 2.3 million comments have been received by the Forest Service with_____________ of ...
查看完整题目与答案
【单选题】神经纤维动作电位的峰值接近于
A.
Na + 与 K + 浓度差
B.
Na + 平衡电位
C.
K + 平衡电位
D.
Na + 平衡电位与 K + 平衡电位之差
E.
Na + 平衡电位与 K + 平衡电位之和
查看完整题目与答案
【简答题】已经漂白加工的羽毛
查看完整题目与答案
【单选题】Which of the following, if true, would most weaken the argument of the critics of the Kyoto Protocol that implementing the protocol would be too costly?
A.
While it is true that the scientific community is not unanimously in agreement that global warming is occurring, more than 95 percent of climatologists at universities and government-funded laboratories in Europe and North America agree that global warmin
B.
Hybrid fuel-cell cars are less expensive to operate than conventional cars because of their much greater fuel efficiency, but it is unlikely that these operational savings will ever be able to cost-justify the much greater initial investment required to p
C.
Nuclear power, although completely flee of carbon emissions and comparable in operating cost to an oil-burning power plant, brings the added back-end cost of disposing of the spent nuclear waste, which is both radioactive and highly toxic.
D.
Although it is unfair in a sense to impose different emissions restrictions on different countries, it is only fair to impose the most restrictive limitations on countries whose advanced economic development will allow them to conform. to the regulations w
E.
One nation that switched the fuel of 35 percent of its power plants from coal to natural gas in order to reduce carbon dioxide emissions found that natural gas, although initially more expensive than coal, dropped in price to a level comparable to that of
查看完整题目与答案