题目内容

6个钉子_呻、Q、R、s、T和u放在7个不同的洞中，每一个钉子所占据的洞与其他钉子的不一样。这些洞按从左到右的顺序从1到7编号，且一条直线均匀分布。钉子的放置仅须遵从以下条件：(1)P和Q之间的距离与R和S之间的距离相同；(2)T和U相邻，但先后位置不一定；(3)最左边的那个洞不能空着。若P和Q分别在2号和4号洞，则下面哪一项可能正确

A. R在3号洞。
B. R在5号洞。
C. S在6号洞。
D. U在1号洞。

查看答案

搜索结果不匹配？点我反馈

更多问题

Questions 11-13 are based on the following passage. You now have 15 seconds to read questions 11-13. According to the talk it is a common sense that ______.

A. Deer are vegetarians.
B. Deer are carnivores.
C. Deer eat raw foods only.
Deer are both vegetarians and carnivores.

如下程序声明了一个电话号码类PhoneNumber，重载了流插入运算符＜＜，以便于电话号码的输出。请将程序补充完整。 #include＜iostream＞ #include＜iomanip＞ #include＜string＞ using namespace std； class PhoneMunber public： void setNumber(string number)this-＞number＝number； //重载流插入操作符 friend______(ostream &output，const PhoneNumber &num) output＜＜num.number；returnoutput； private： string number； )； int main() PhoneNumber phone； phone.setNumber(“8008100598”)； cout＜＜“The phone number is：”＜＜phone＜＜endl； return 0； )

Part A You will hear a passage about women’ s rights. Listen and complete the sentences in questions 1-5 with the information you have heard. Write not more than 3 words in each box. You will hear the recording twice. You now have 25 seconds to read the sentences in question. The passage is mainly about ______.

Kelly made a clear distinction between meaningful and ______ learning activities.