营养要求特殊的细菌是() A.霍乱弧菌 B.痢疾志贺菌 C.伤寒沙门菌 D.变形杆菌

题型:单项选择题 1.0

问题:

营养要求特殊的细菌是()

A.霍乱弧菌

B.痢疾志贺菌

C.伤寒沙门菌

D.变形杆菌

E.结核分枝杆菌

考点:临床医学检验技术士临床检验士专业知识临床医学检验技术士专业知识考前冲刺四
题型:单项选择题 1.0

.某同学连接的电路如图7—12所示,他所用的电源电压为12 V,电阻R2的阻值为40 Ω,闭合开关后,电流表的示数为0.5 A,请你帮他算出:

图7—12

(1)R1的阻值;

(2)当他将开关S断开后,电流表的示数是多少?

题型:单项选择题 1.0

多数植物种子萌发所需的最高温度为(),高于此温度不能萌发。

A.25~30℃

B.35~40℃

C.25~35℃

D.30~35℃

题型:单项选择题 1.0

Anyone who doubts that children are born with a healthy amount of ambition need spend only a few minutes with a baby eagerly learning to walk or a headp toddler starting to talk. No matter how many times the little ones stumble in their initial efforts, most keep on trying, determined to master their amazing new skill. It is only several years later, around the start of middle or junior high school, many psychologists and teachers agree, that a good number of kids seem to lose their natural drive to succeed and end up joining the ranks of underachievers. For the parents of such kids, whose own ambition is often inseparately tied to their children’s success, it can be a bewildering, painful experience. So it is no wonder some parents find themselves hoping that ambition can be taught like any other subject at school.
It’s not quite that simple. "Kids can be given the opportunities, but they can’t be forced," says Jaequelynne Eccles, a psychology professor at the University of Michigan who led a study examining what motivated first-and-seventh-graders in three school districts. Even so, a growing number of educators and psychologists do believe it is possible to unearth ambition in students who don’t seem to have much. They say that by instilling confidence, encouraging some risk taking, being accepting of failure and expanding the areas in which children may be successful, both parents and teachers can reignite that innate desire to achieve.
Dubbed Brainology, the unorthodox approach uses basic neuroscience to teach kids how the brain works and how it can continue to develop throughout life. The message is that everything is within the kids’ control, that their intelligence is

malleable

.
Some experts say our education system, with its p emphasis on testing and rigid separation of students into different levels of ability, also bears blame for the disappearance of drive in some kids. Some educators say it’s important to expose kids to a world beyond homework and tests, through volunteer work, sports, hobbies and other extracurricular activities. "The crux of the issue is that many students experience education as irrelevant to their life goals and ambitions," says Michael Nakkula, a Harvard education professor who runs a Boston-area mentoring program called Project IF (Inventing the Future), which works to get low-income underachievers in touch with their aspirations. The key to getting kids to aim higher at school is to tell them the notion that classwork is irrelevant is not true, to show them how doing well at school can actually help them fulfill their dreams beyond it. Like any ambitious toddler, they need to understand that they have to learn to walk before they can run.

Paragraph 1 mentions some parents who would see their kids’ failure as ______.

A.natural

B.trivial

C.intolerable

D.understandable

题型:单项选择题 1.0

微型计算机中,普遍使用的字符编码是( )。

A.补码

B.原码

C.ASCII码

D.汉字编码

题型:单项选择题 1.0

浇筑某桥的混凝土梁,当桥下交通量大时可采用()方法浇筑。

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