以下属于牙周病先天性危险因素,除了A.种族B.性别C.年龄D.遗传因素E.先天性免疫

题型:单项选择题

问题:

以下属于牙周病先天性危险因素,除了

A.种族
B.性别
C.年龄
D.遗传因素
E.先天性免疫缺损

考点:口腔执业医师口腔执业医师
题型:单项选择题

如果两种商品的功用相同或相近,可以满足消费者的同一需要,这两种商品就是互为替代品。当其中一种商品价格下降后,所产生的影响是 [ ]

①消费者将减少对该商品的需求量 ②消费者将增加对该商品的需求量 ③另一种商品的需求量将增加

④另一种商品的需求量将减少

A.①②

B.①③

C.②④

D.③④

题型:单项选择题

Do American children still learn handwriting in school? In the age of the keyboard, some people seem to think handwriting lessons are on the way out. 90% of teachers say they are required to teach handwriting.But studies have yet to answer the question of how well they are teaching it. One study published this year found that about three out of every four teachers say they are not prepared to teach handwriting. Some teachers are teaching handwriting by providing instruction for 10 15 minutes a day, and then other teachers who basically teach it for 60 to 70 minutes a day — which really for handwriting is pretty much.

Many adults remember learning that way — by copying letters over and over again. Today’ s thinking is that short periods of practice are better. Many experts also think handwriting should not be taught by itself.Instead, they say it should be used as a way to get students to express ideas. After all, that is why we write.

Handwriting involves two skills. One is legibility,_which means forming the letters so they can be read. The other is fluency — writing without having to think about it. Fluency continues to develop up until high school.

But not everyone masters these skills. Teachers commonly report that about onefourth of their kids have poor handwriting. Some people might think handwriting is not important any more because of computers and voice recognition programs.

But Steve Graham at Vanderbilt says word processing is rarely done in elementary school, especially in the early years. American children traditionally first learn to print, and then to write in cursive, which connects the letters. But guess what we learned from a spokeswoman for the College Board, which administers the SAT college admission test. More than 75 percent of students choose to print their essay on the test rather than write in cursive.

小题1:We can learn ________ from Paragraph 1.

A.teaching handwriting is a basic requirement in teaching job

B.most teachers prefer to teach handwriting

C.teachers spend little time in teaching handwriting

D.a keyboard has taken the place of the handwriting entirely小题2:Which of the following is WRONG for traditional handwriting in the USA?

A.The students are taught by practicing a long period.

B.The letters are repeated many times.

C.Handwriting includes two skills.

D.To write in cursive is taught first.小题3:The underlined word “legibility” in Paragraph 3 means ________.

A.easy to read

B.complex

C.unexpected

D.unreadable小题4:The best title for the passage is ________.

A.How to improve handwriting in school

B.Right or wrong: the death of handwriting

C.Handwriting involves two skills

D.Handwriting lessons are on the way out小题5:The author’ s attitude towards whether still to learn handwriting in school is________.

A.negative

B.objective

C.critical

D.optimistic

题型:单项选择题

砌体工程冬期施工错误的是()。

A、冬期砌筑施工时,砂浆温度不应低于5℃。

B、当最低温度等于或低于-15℃时,砌体的砂浆强度等级较常温施工提高一级。

C、砂浆试块的留置与常温规定要求相同。

D、现场拌制砂浆所用砂中不得含有直径大于10mm的冻结快或冰块。

题型:单项选择题

下列对好氧生物处理的影响因素不正确的是()

A.温度每增加10~15℃,微生物活动能力增加一倍

B.当pH<6.5或pH>9时,微生物生长受到抑制

C.水中溶解氧应维持2mg/l以上

D.微生物对氮、磷的需要量为BOD5:N:P=200:5:1

题型:单项选择题

卫生部法监司关于现制现售饮用水监管有关问题的复函中正确的是()。

A、用于现场制作饮用水的制水设备必须获得涉水产品卫生许可批件

B、现制现售的饮用水必须符合制水设备所标识的饮用水标准以及现行的生活饮用水卫生规范。

C、从业人员必须符合食品卫生法‣第二十六条的规定

D、当地卫生行政部门应依据食品卫生法‣和生活饮用水卫生监督管理办法‣及相关规定对该供水方式实施监管

E、从业人员必须符合生活饮用水卫生监督管理办法第十一条的规定

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