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【单选题】
燃气轮机燃烧器预混可燃气体的着火临界温度和临界压力与（）、混合成分以及对外界散热条件等因素有关。A.
燃料种类；
B.
氧化剂种类；
C.
燃料、氧化剂种类。
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【简答题】根据短文内容, 选择正确答案. Today, an increasing number of people are always looking at their mobile phones with their heads down. These people are called the "'Heads-down Tribe (低头族). Are you a heads-down tribe ...
【单选题】Who phones to make an appointment for Jake and Jessie?
A.
Miss. Judd.
B.
Mr. Judd.
C.
Mrs. Judd.
D.
Ms. Judd.
【单选题】You’re going to make a presentation about people’s increasing reliance on mobile phone. Which of the following is NOT appropriate to be used to grab audience’s attention in the opening of a presentati...
A.
You open with a quotation: "If television is a babysitter, the Internet is a drunk librarian who won't shut up".
B.
You ask audience to imagine what if they live without mobile phone for two days.
C.
You display a picture in which all the people are playing with mobile phones on a subway car.
D.
You open with a question: “Could you tell me how often you update your We-chat Moments? ”
【简答题】浮游植物主要包括（）、（）、（）、（）、（）、（）、（）、（）等八个门的藻类。
【简答题】Today, an increasing number of people are always looking at their mobile phones with their heads down. These people are called the “Heads-down Tribe( 低头族 )”. Are you a heads-down tribe member? Heads-d...
【多选题】前几年，无锡市政部门在城区古运河放置了50多组泡沫浮床，栽种水生、半水生植物，面积达到10000多平方米，用于净化水体。其净化水体的机理包括 [ ]
A.
吸收水体中NO 3－ 、PO 4 3－ 等，降低水中氮、磷含量
B.
浮床遮光，抑制浮游藻类的生长繁殖，防止水华发生
C.
促进水体中氧浓度升高，有利于水生动物的生存
D.
增加水体中有机物含量，使水体中生物多样性提高
【单选题】How many finite verb phrases are there in the following sentence groups: With the appearance of mobile internet, shopping on phones has become a trend.The young men between 18 and 30 make up the bigge...
A.
5
B.
6
C.
7
D.
8
【简答题】植物界几大类群中, 哪几类属高等植物________________________。 2.维管植物包括哪几个门________、________、________。 3.各大类群植物中: ________、________、________植物具有维管束; ________、________、________植物具有颈卵器; ________植物具有花粉管; ________植物具有果实。 4....
【简答题】浮游植物主要包括 ( )、( )、( )、( ) ( )、( )、( )、( ) 等八个门的藻类。
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