Do the following statements agree with the information given in Reading Passage 2 ? In box
Vehicle pollution is worse in European cities than anywhere else.
A.YES
B.NO
C.NOT GIVEN
Vehicle pollution is worse in European cities than anywhere else.
A.YES
B.NO
C.NOT GIVEN
第1题
A.The states and kingdoms of great books.
B.The states of kingdoms of gol
C.The western islands of the United Kingdom.
D.The United States and the United Kingdom.
第2题
Which one of following is wrong about Steve Jobs?()
A、He dropped out of college.
B、He started Apple when he was 21.
C、His real parents were died when he was born.
D、He was a Buddist.
第3题
The following suggestions increase "Programs" (1) and make them easier to (2):
1.Use a standard indention technique, blank lines, form. feeds, and spaces.
2.Insert plenty of comments into your code.
A.reliability
B.security
C.readability
D.usability
第4题
下列程序的输出结果是()。
#included stdi0.h>
#included string.h>
void fun(int b[])
{ static int i=0;
do { b[i]+=b[i+1]; }
while(i<2);
}
main
{ int k,a[5]={1,3,5,4,9};
fun(a);
for(k=0;k<5;k++)
printf("%d",a[k]); }
A.13579
B.48579
C.48549
D.48999
第5题
在窗体上画一个名称为Command1的命令按钮,然后编写如下事件过程: Private Sub Commandl_click() Dim a As Integer,s As Integer a=8 s=1 Do s=sta a=a-1 Loop While a<=0 Print s=a End Sub 程序运行后,单击命令按钮,则窗体上显示的内容是______。
A.79
B.340
C.97
D.死循环
第6题
A. Create a SQL Tuning Set (STS) that contains the queries cached in the library cache and run the SQL Tuning Advisor (STA) on the workload captured in the STS.
B. Run the Automatic Workload Repository Monitor (ADDM).
C. Create an STS that contains the queries cached in the library cache and run the SQL Performance Analyzer (SPA) on the workload captured in the STS.
D. Create an STS that contains the queries cached in the library cache and run the SQL Access Advisor on the workload captured in the STS.
第7题
Consider the query:Mysql> SET @run = 15;Mysql> EXPLAIN SELECT objective, stage, COUNT (stage)FROM iteminformationWHERE run=@run AND objective=’7.1’GROUP BY objective,stageORDER BY stage;The iteminformation table has the following indexes;Mysql> SHOW INDEXES FROM iteminformation:This query is run several times in an application with different values in the WHERE clause in a growing data set.What is the primary improvement that can be made for this scenario?()
A.Do not pass a user variable in the WHERE clause because it limits the ability of the optimizer to use indexes
B.Add an index on the objective column so that is can be used in both the WHERE and GROUP BY operations
C.Drop the run_2 index because it has caused a conflict in the choice of key for this query
D.Execute the run_2 index because it has caused a conflict in the choice of key for this query
E.Add a composite index on (run,objective,stage) to allow the query to fully utilize an index
第9题
第10题
A.when to do
B.where to do
C.whether
D.what to do
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