For detecting quicksand the author recommends______.A. good eyesightB. fast thinkingC. the use of a long poleD. testing the surface with your shoe

For detecting quicksand the author recommends______.

A. good eyesight

B. fast thinking

C. the use of a long pole

D. testing the surface with your shoe


相关考题:

–Jack, let me introduce you to my former roommate, Denise Black.–(). A、No, I don’t.B、Yes, please.C、Nice to meet you.D、Good!

_________________[A] distinguishing[B] discovering[C] determining[D] detecting

设串s="student.",t=“good",则执行StrInsert(s,1,t)后,s为()。 A."good student."B."good student"C."goodstudent"D."good teacher"

下列的哪个程序段可能导致错误? ( )A.String s="hello"; String t="good"; String k=s+t;B.String s="hello"; String t; t=s[3]+"one";C.String s="hello"; String standard=s.toUpperCase();D.String s="hello"; String t=s+"good";

下列哪个程序段可能导致错误?A.String s="hello"; String t= "good"; String k=s+ t;B.String s="hello"; String t; t=s[3]+"one";C.String s="hello"; String standard=s. toUpperCaseD.String s="hello"; String t =s+ "good"

下列的( )程序段可能导致错误。A.String s="hello": Sting t="good"; String k=s+t;B.Sting s="hello"; String t; t=s [3] + "one";C.Sting s="hello"; String standard=s.toUpperCase( );D.String s="hello": Stringt s +"good";

下列的哪个程序段可能导致错误?A.String s = "hello"; String t = "good"; String k = s + t;B.String s = "hello"; String t; t = s[3] + "one";C.String s = " hello "; String standard = s.toUpperCase( );D.String s = "hello"; String t = s + "good";

5、假设有一个RDD的名称为words,包含9个元素,分别是:(”Hadoop”,1),(”is”,1),(”good”,1),(”Spark”,1),(”is”,1),(”fast”,1),(”Spark”,1),(”is”,1),(”better”,1)。则语句words.groupByKey()的执行结果得到的新的RDD中,所包含的元素是A.(”Hadoop”,1),(”is”,(1,1,1)),(”good”,1),(”Spark”,(1,1)),(”fast”,1),(”better”,1)B.(”good”,1),(”Spark”,1),(”is”,1),(”fast”,1)C.(”good”,(1,1)),(”Spark”,(1,1,1)),(”is”,1),(”fast”,1)D.(”Hadoop”,1),(”is”,1),(”good”,1),(”Spark”,1),(”is”,1)

假设有一个RDD的名称为words,包含9个元素,分别是:(”Hadoop”,1),(”is”,1),(”good”,1),(”Spark”,1),(”is”,1),(”fast”,1),(”Spark”,1),(”is”,1),(”better”,1)。则语句words.groupByKey()的执行结果得到的新的RDD中,所包含的元素是A.(”Hadoop”,1),(”is”,(1,1,1)),(”good”,1),(”Spark”,(1,1)),(”fast”,1),(”better”,1)B.(”good”,1),(”Spark”,1),(”is”,1),(”fast”,1)C.(”good”,(1,1)),(”Spark”,(1,1,1)),(”is”,1),(”fast”,1)D.(”Hadoop”,1),(”is”,1),(”good”,1),(”Spark”,1),(”is”,1)

执行以下程序段后,输出结果是() 。 char s[20]= "Good",t[]="Moring!"; strcat(s,t); puts(s);A.GoodMoring!B.Moring!C.GoodD.Moring!Good