皮皮学,免费搜题
登录
logo - 刷刷题
搜题
【单选题】
不带头结点的单链表的头指针为 head,判断该链表为空的条件是( )。
A.
head==NULL
B.
head->next==NULL
C.
head!=NULL
D.
head->next!=NUL
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
微信内点击右上角“…”即可分享
反馈
参考答案:
举一反三
【判断题】一个元素的原子,核外电子层数与元素在周期表中所处的周期数相等;最外层电子数与该元素在周期表中所处的族数相等
A.
正确
B.
错误
【简答题】A.They want to stay home and do the housework. B.They have too much work and not much free time. C.They don't have enough money. D.They have more than in the past.
【单选题】Too much work and too little rest ____ to his illness.
A.
causes
B.
forms
C.
leads
D.
makes
【判断题】一个元素的原子,核外电子层数与该元素在周期表中所处的周期数相等;最外层电子数与该元素在周期表中所处的族数相等。
A.
正确
B.
错误
【单选题】Too much work and too little rest bad health.
A.
lead to
B.
leads to
C.
result in
D.
result from
【单选题】Too much work and too little rest often( ) illness.
A.
used to
B.
lead to
C.
object to
D.
stick to
【简答题】短周期的四种主族元素W、X、Y、Z,原子序数依次减小,四种元素的原子核外电子层数之和为8。X元素的原子最外层电子数等于Y和Z两元素的原子最外层电子数之和。W元素和Y元素的原子最外层上的电子数分别是各自电子层数的2倍,X和Z可以形成XZ 3 的化合物。 (1)写元素名称: X______,Y______Z_______ ,W在周期表的位置是:_______ (2)(XZ 4 ) 2 W的电子式___...
【简答题】Too much work and too little rest often leads to (ill) ______.
【简答题】Too much work and too little rest was led to his uncle’s death . A                   B     C              D
【单选题】( )ために、お金を稼いでいます。
A.
家族
B.
家族の
C.
家族な
D.
家族だ
相关题目:
参考解析:
知识点:
题目纠错 0
发布
创建自己的小题库 - 刷刷题