The last paragraph is about how to teach a teenager ______.A. to use the phone in a sensible way B. to pay for his own telephoneC. to share the phone with friends D. to answer the phone quickly
The last paragraph is about how to teach a teenager ______.
A. to use the phone in a sensible way B. to pay for his own telephone
C. to share the phone with friends D. to answer the phone quickly
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以下哪个统一资源定位器的写法是完全正确的?A.http://www.teach.com\que\que.htmlB.http//www.teach.com\que\que.htmlC.http://www.teach.com/que/que.htmlD.http//www.teach.com/que/que.html
to, I, how, last, winter, skate, learned__________________________________________________________________________.
网络电话大体可以分成三种:PC－to－PC、PC－to－Phone、()。 A、Phone-to-PhoneB、Phone-to-PCC、Phone-to-InternetD、PC-to-Internet
Review the definition of the phone_list view.CHEATE OR REPLACE ALGORITHM=MERGE DEFINER= ‘root‘@localhost‘ SQL SECURITY DEFINER VIEW ‘phone_list‘ AS SELECTe . id as id ‘e . first_name AS ‘first_name‘ ‘e . last_name AS ‘last_name‘ ‘coalesce ( ph1.phone_no, ‘ – ‘) AS ‘office_no‘ ‘coalesce (ph2 .phone_no, ‘ – ‘) AS ‘cell_no‘ FROM employees e LEFT JOIN employee_phone ph1 ON ph1.emp_id = e.id AND ph1.type = ‘office‘ LEFT JOIN employee_phone ph2 ON ph2 .emp_id = e.id AND ph2 .type = ‘mobile‘The tables employees and employee_phone are InnoDB tables;all columns are used in this view. The contents of the phone_list view are as follows: Mysql select * from phone_list; 1 row in set (0.00 sec)Which method can you use to change the cell_no value to ‘555-8888‘ for John Doe?（）A.INSERT INTO employee_phone (emp_id, phone_no, type) VALUES (1, ‘555-8888‘,‘mobile‘)B.UPDATE phone_list SET cell_name ‘555-8888‘ WHERE first_name= ‘John‘ and last_name= ‘Doe‘C.DELETE FROM phone_list WHERE first_name= ‘John‘ and last_name= ‘Doe‘; INSERT INTO phone_list (first_name, last_name, office_no, cell_no) VALUES (‘John‘ , ‘Doe‘ , ‘x1234‘ , ‘555-8888)D.UPDATE employee_phone SET phone_no= ‘555-8888‘ where emp_id=1
Her overall language proficiency remains that of a 【toddler】.A. Disabled B. pupil C. baby D. teenager
已知last指向单向简单链表的尾结点，将s所指结点加在表尾，不正确的操作是____。A．last-＞next=s,last=s,last-＞next=NULL;B．last-＞next=s,s-＞next=NULL,last=s;C．s-＞next=NULL, last-＞next=s, s=last;D．s-＞next=NULL, last-＞next=s,last=s;
【单选题】 以下哪个统一资源定位器的写法是完全正确的A．http//www.teach.comqueque.htmlB．http://www.teach.comqueque.htmlC．http://www.teach.com/que/que.htmlD．http//www.teach.com/que/que.html
7、已知last指向单向简单链表的尾结点，将s所指结点加在表尾，正确的操作是____。A．s-＞next=s,last=s,last-＞next=NULL;B．last-＞next=s,s-＞next=NULL,last=s;C．s-＞next=NULL, last-＞next=s, s=last;D．s-＞next=last, last-＞next=NULL,last=s;
已知last指向单向简单链表的尾结点，将s所指结点加在表尾，正确的操作是____。A．s-＞next=s,last=s,last-＞next=NULL;B．last-＞next=s,s-＞next=NULL,last=s;C．s-＞next=NULL, last-＞next=s, s=last;D．s-＞next=last, last-＞next=NULL,last=s;
修改数据库Teach，将数据文件Teach_Data.mdf的逻辑名Teach_Data改为Teaching_Data，Filegrowth改为2; 添加一个次要数据文件，将其存放在E盘，逻辑名称为Teach_Data2，文件名称请自己命名。