对于已受污染的潜水和承压水,不得()开采。 A.分层 B.混合 C.逐层同时 D.混

题型:单项选择题

问题:

对于已受污染的潜水和承压水,不得()开采。

A.分层

B.混合

C.逐层同时

D.混层

考点:环保气象安全技能考试注册环保工程师(专业知识)注册环保工程师(专业知识)题库
题型:单项选择题

阅读理解.

     Many students in the USA always take the school bus to school every day. Parents think taking the

school bus is very safe(安全的). But sometimes it is also dangerous. Some students died(死亡) because

they broke the school bus rules. Here are some school bus rules:

     ◆Amve at the bus station early. 

     ◆Wait for the bus at the bus station. 

     ◆Don't play around the bus. 

     ◆Don't run everywhere at the bus station. 

     ◆Don't walk or fight in the bus when it is going. 

     ◆Don't try to leave the bus until it stops. 

     These rules are good for students. Remember them and don't break them. So you can keep yourself

safe.

根据短文内容,判断下列句子正( T)误( F) 。

( )1. Taking the school bus to school is always safe.

( )2. Students can run everywhere at the bus station.

( )3. Students have to sit on their seats when the bus is going.

( )4. Students can't get to the bus station late.

( )5. It can be dangerous if students break the school bus rules.

题型:单项选择题

当a>0且a≠1时,函数f (x)=ax﹣2﹣3必过定点(    )

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对大环内酯类耐药的某些细菌可能对克林霉素结构性或诱导性耐药,故对此类细菌需进行克林霉素诱导试验(D试验)。

关于葡萄球菌属D试验纸片扩散法,下列叙述错误的是()

A.培养基可采用M-H琼脂或用于MIC测试的血琼脂平板

B.纸片含量分别为红霉素15μg和克林霉素2μg

C.35±2)℃,空气,18~24h

D.边缘相距15~26mm

E.金黄色葡萄球菌ATCC25923用于纸片扩散法常规质量控制

题型:单项选择题

乳腺癌有多种分型方法,目前国内多采用以下病理分型,其中恶性程度高的是()

A.非浸润性癌,包括导管内癌、小叶原位癌、湿疹样癌

B.早期浸润性癌,包括早期浸润性导管癌、早期浸润性小叶癌髓样癌

C.浸润性特殊癌,包括 * * 状癌、髓样癌、小管癌、黏液腺癌等

D.浸润性非特殊癌,包括浸润性小叶癌、浸润性导管癌、癌硬、单纯癌、腺癌等

E.其他罕见癌

题型:单项选择题

计算机里面的猫和老鼠指的是()。

A、Modem and Mouse

B、Tomand Jerry

C、键盘和鼠标器

D、以上都对

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