Most plants can make their own food from sunlight, (1) some have discovered that stealing is an easier way to live. Thousands of plant species get by (2) photosynthesizing, and over 400 of these species seem to live by pilfering sugars from an underground (3) of fungi(真菌). But in (4) a handful of these plants has this modus operandi been traced to a relatively obscure fungus. To find out how (5) are (6) , mycologist Martin Bidartondo of the University of California at Berkeley and his team looked in their roots. What they found were (7) of a common type of fungus, so (8) that it is found in nearly 70 percent of all plants. The presence of this common fungus in these plants not only (9) at how they survive, says Bidartondo, but also suggests that many ordinary plants might prosper from a little looting, too.
Plants have (10) relations to get what they need to survive. Normal, (11)
A. taking
B. grasping
C. sucking
D. catching

查看答案

[判断题]在TN系统配电线路中,接地故障保护在满足一定切除故障线路时间要求的情况下,可采用过电流保护兼作接地故障保护。( )
A.正确
B.错误

查看答案

[单项选择]帷幕灌浆中自上而下法是采用哪种方法封孔的（）。
A. 分段压力灌浆封孔法
B. 压力灌浆封孔法
C. 全段压力灌浆封孔法
D. 以上都不是

查看答案

[单选题]公司《电网业务发展实施方案》提出到2025年，110千伏及以上线路长度达到（）万公里、变电容量达到74亿千伏安，并网发电装机规模达到23.5亿千瓦。
A.A、151
B.152
C.153
D.154

查看答案

[单选题]在要求小流量、高压力的输液系统，应选用( )。
A.离心泵
B.往复泵
C.齿轮泵
D.真空泵

查看答案

[多选题]运用中的电气设备是指（）的电气设备。
A.全部带有电压
B.一部分带有电压
C.一经操作即带有电压
D.没有电压

查看答案

[单选题]B-B-A-022 4 2 4
活塞式压缩机的工作循环按顺序分为( )。
A. 吸气、排气、压缩、排气膨胀
B. 压缩、排气、排气膨胀、吸气
C. 吸气、压缩、排气、排气膨胀
D. 排气、排气膨胀、吸气、压缩

查看答案

[单选题]不属于抢救室必需的设备是
A.除颤器
B.壁灯
C.抢救车
D.电源插座
E.木板一块

查看答案

[判断题]车站值班员接到司机或工务、电务、供电等人员的救援请求后，应立即报告列车调度员。需封锁区间派出救援列车时，列车调度员应向有关车站发布命令封锁区间，并派出救援列车。
A.正确
B.错误

查看答案

[多项选择]租户管理的目的有（）。
A. 使当前的租户在其租约期满后能续租
B. 为物业创造良好的声誉
C. 吸引新租户
D. 提高市场竞争力
E. 降低物业租金

查看答案

[单项选择]
阅读下面短文，从短文后所给的[A]、[B]、[C]三个选项中选出一个能填入空白处的最佳选项。

I shall always remember my tenth birthday. All my friends came {{U}} (41) {{/U}}my birthday party.
When the time{{U}} (42) {{/U}}near for me to be ready for the party, I{{U}} (43) {{/U}}my birthday dress and went into the hall where every one was{{U}} (44) {{/U}}for me. I saw a lot of lovely presents. They had been{{U}} (45) {{/U}}for me by the guests.
A few minutes{{U}} (46) {{/U}}, my parents brought my birthday cake (蛋糕) with ten candles (蜡烛) on it. I was then asked to cut{{U}} (47) {{/U}}and the guests were served. Music{{U}} (48) {{/U}}during the party. The guests were talking and laughing.{{U}} (49) {{/U}}the party, I thanked my parents{{U}} (50) {{/U}}holding such a lovely birthday party for me.

查看答案

[多项选择]价格鉴证文书的收集是一项重要工作，收集时应注意处理好的问题有（）。
A. 按照价格鉴证的职能分类，防止涉案物品价格鉴证与非涉案物品价格鉴证的两类文件材料混合立卷和不必要的重复立卷
B. 价格鉴证文书材料的收集实行硬性“一刀切”
C. 对价格鉴证的证明材料应以价格鉴证的结论书所列的内容为标准，对于经过核实和未经核实、已用作依据和未用作依据的材料严加区分，分别取舍
D. 在价格鉴证结论书所述问题中未经核实的材料，仍需立卷
E. 在价格鉴证结论书所述问题中未经核实的材料，均不立卷

查看答案

[单项选择]根据规定，持有会计从业资格证书的人员每年接受培训（面授）的时间累计不得少于（）小时。
A. 96
B. 48
C. 32
D. 24

查看答案

[单项选择]1000Base-SX标准使用波长为850nm的多模光纤，光纤最大长度可达______。
A. 500m
B. 550m
C. 850m
D. 1000m

查看答案

[多选题]按照集团公司《固定式应急柴油发电机组使用管理办法》规定，固定式应急柴油发电机组启动运行后，发电机组运行人员应通过仪表密切监视（）、功率因数、水温等仪表指示值及其变化。
A.电压、频率
B.电流、功率
C.油压、油温
D.充电电流、转速

查看答案

[简答题]简述使用元件的好处。

查看答案

[判断题]顾客在自助加油过程中，员工可以适当推广便利店业务，必要时可以帮助顾客加注油品。
A.正确
B.错误

查看答案

[判断题]检查时发现隐瞒采掘工作面提供假图纸，瓦斯、一氧化碳气体超限，不如实提供超限原因说明的，属于红线行为
A.正确
B.错误