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请写出本程序的执行结果(假设执行时间为2018年3月15日) header("Content-type:text/html;charset=utf-8"); //设置编码 $mouth=date("n"); //设置月份变量$mouth $today=date("j"); //设置日期变量$today if($today>=1 and $today<=10){ //判断日期变量是否在1~10之间 echo "今天是".$mouth."月".$today."上旬"; //如果是,说明是上旬 }else if($today>=10 and $today<=20){ //判断日期变量是否在11~20之间 echo "今天是".$mouth."月".$today."中旬"; //如果是,说明是中旬 }else{ //如果上面的两个判断都不符合要求,则输出默认值 echo "今天是".$mouth."月".$today."下旬"; //上面本月是下旬 } ?>
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【简答题】Fill in the gaps with words or phrases given in the box. Change the form where necessary. t hrust overseas fertile split k een sustain grip reflect i dentify margin previous hesitate b ud whichever sl...
【简答题】The former lake bed is now a _____________ plain producing good crops of wheat. thrust overseas fertile split keen sustain grip reflect identify margin previous hesitate bud whichever slim glow
【单选题】电路如图 3 - 11 所示,已知电源电动势 E 1 = 6 V 、 E 2 = 1 V , 电源内阻不计, 电阻 R 1 = 1Ω , R 2 = 2Ω , R 3 = 3Ω。则 R 3 上的电流。
A.
3A
B.
2A
C.
1A
D.
5A
【单选题】We were swimming in the lakesuddenly the storm started．
A.
when
B.
while
C.
until
D.
before
【多选题】下面哪些句子用 sway 不恰当?
A.
We also wondered if a different context would sway students' opinions and focus as Twitter users within a higher education classroom.
B.
A faint, sharp wind made the branches of the tree around the lake sway slightly, like enraptured concertgoers. Ramon and the rest of the family had retreated
C.
How would I describe former President Bill Clinton's golf sway ? Entertaining and dangerous. Let's start with the good stuff.
D.
…my knees and shuffle forward, but Sean sleeps on a water bed so I sway back and forth, then kind of topple into him. He looks down on…
E.
He also said that the boss' mood can sway wildly from day to day’? depending upon the success of SpaceX and his car company…
【简答题】如图所示,已知电源电动势 E=2V ,内电阻不计,外电路电阻 R1=1 Ω, R2= Ω, R3=3 Ω, R4=6 Ω。求: A 、 B 、 C 、 D 四点的电位?
【单选题】已知集合A={x|x 2 -5x+6≤0}，B={x||2x-1|＞3}，则集合A∩B=（ ）
A.
{x|2≤x≤3}
B.
{x|2≤x＜3}
C.
{x|2＜x≤3}
D.
{x|-1＜x＜3}
【简答题】如图所示,已知电源电动势E 1 =18V,E 3 =5V,内阻r 1 =1Ω, r 2 =1Ω,外电阻R 1 =4Ω, R 2 =2Ω, R 3 =6Ω, R 4 =10Ω,电压表的读数是28V,求电源电动势E 2 和A、B、C、D各点的电位。
【简答题】计算题：如图所示，已知电源电动势E 1 ＝6V，E 2 ＝1V，电源内阻不计，电阻R 1 ＝1Ω，R 2 ＝2Ω，R 3 ＝3Ω，试用支路电流法求各支路的电流。
【单选题】We were swimming in the lake _____ suddenly the storm started.
A.
when
B.
until
C.
while
D.
before
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