( )既可重载为一元运算符,又可重载为二元运算符。A.“*” B.“=” C.“=

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问题:

( )既可重载为一元运算符,又可重载为二元运算符。

A.“*”

B.“=”

C.“=”和“*”

D.“*”和“*++”

考点:计算机等级考试C++二级C++笔试
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富集培养是微生物学中的最强有力的技术手段之一。富集条件可根据所需分离的微生物的特点,从物理、化学、生物及综合多个方面进行选择,如温度、pH、紫外线、高压、光照、氧气、营养等许多方面,使仅适合该条件的微生物数量大大增加。下图描述了采用富集方法从土壤中分离能降解酚类化合物(对羟基苯甲酸)的微生物的实验过程。请分析后回答:

(1)所需的土壤样品应该从_________(填“农田”、“工厂”或“森林”)取得。

(2)该实验的原理是____________。

(3)①→③重复培养的目的是__________。该过程中使用的培养基的物____________。该培养基中的碳源是___________。根据用途划分,该培养基的类型为____________。

(4)⑤中主要是__________形成的菌落。

(5)⑥为__________组,⑦为_________组,设置对照的目的是__________。

(6)实验操作过程中的无菌操作有:__________(至少写两点)。

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分散插入导语中的方法也是消息中背景常见的方式之一。( )

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This was one of my experiences (1) . When I was in my 30s, I was working for a large international company which had its head office in London. I was working in the (2) department.
The company had a training centre which was just outside London. Different courses were held there throughout (3) and I (4) go on one training course a year. These usually started (5) a Sunday evening and lasted six days.
Once I was (6) a week’s training course with about forty (7) sales people. I was in the bar on the Friday evening and suddenly a woman who was (8) behind the bar asked mea curious question. "I hope you don’t (9) my asking," she said, "but I’ve been (10) about it all week. Have you got a sister (11) Mary" The woman’s name was June. And she used to do various jobs at the training centre. She worked in the office, she organized all the food and drink for the centre and she worked in the bar at lunchtime and in the evening.
My answer (12) June’s question was "Yes", and June said, "I thought (13) . I met her last September when she was organizing a course here. " At that time, my sister was working for (14) company but in a different part of the country. That was (15) she came to be at the training centre.
(16) surprised me was how June guessed we were brother and sister. Three things made it even more (17) . First, she had met my sister six months before she met me. Second, they have about sixty new people every week at the training centre. So about one thousand five hundred people had (18) the centre in those six months. And (19) , my sister is married, so she doesn’t have the same family name as me.
We’re not (20) , but I guess we must look quite like each other.

A.called
B.calling
C.calling on
D.calling up

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商定咨询目标时,若双方目标有差异,无法协调的,应以( )为主。

A.求助者的要求
B.咨询师的要求
C.上级咨询师提出的建议
D.临床资料分析的结果

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《汉书·艺文志》在评价战国时期的某一学派时说:“盖出于史官,历记成败存亡祸福古今之道,然后知秉要执本,清虚以自守卑弱以自持,此君人南面之术也。”它所评价的是()

A.墨家

B.道家

C.儒家

D.法家

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