下图是生态系统能量流动的图解。有关叙述错误的是() A.方框的大小可表示该营养级生物

题型:单项选择题

问题:

下图是生态系统能量流动的图解。有关叙述错误的是()

A.方框的大小可表示该营养级生物所含能量的多少

B.通常情况下,C所获得的能量不会超过B的20%

C.A固定的能量为流经该生态系统的总能量

D.A固定的能量是B、C、D的能量之和

考点:高中生物生态系统的结构和功能生态系统的结构和功能题库
题型:单项选择题

Mr. Smith had two sons . One is seven years old, and the other is five. One morning during the holidays, when he was cleaning the car, his younger son came and asked him for some money for sweets.

“Sweets are bad for your teeth,” Mr. Smith said. “Take these two oranges instead(代替), and give one to your elder brother,” One of the oranges is quite a lot bigger than the other one , and as the small boy liked oranges very much, he kept that one for himself, and gave his brother the smaller one.

When the elder boy saw that his younger brother had a much larger orange than his own ,he said to him, “It’s selfish(自私的)to take the bigger one for yourself. If(如果) father had given me the oranges, I ’d have given you the bigger one. ”

“I know you would,” answered his younger brother. ” That’s why I took it. ”

根据短文内容,判断下列句子的正(T)误(F)。(5分)

小题1:Mr Smith gave his son some money for sweets.

小题2:The sweets are good for boys’teeth.

小题3:The younger boy bought some sweets for himself.

小题4:The younger boy gave the bigger orange to his brother.

小题5:The elder boy is not selfish.

题型:单项选择题

患者,女,45岁,双乳肿块疼痛10余年,平素体弱,神疲倦怠,短气乏力,腰膝酸软,畏寒肢冷,月经失调。查双乳腺体增厚,于多个象限可触及片块结节,质韧,活动可,与皮肤无粘连,压痛, * * 有少量清水样溢液,舌淡苔白,脉沉细。其中医诊断及证型考虑为()

A.乳癖,冲任失调证

B.乳疠,肝郁痰凝证

C.乳岩,正虚毒恋证

D.乳核,血瘀痰凝证

E.乳痨,肝肾不足证

题型:单项选择题

下列不是青春期所具有的生理特点是(  )

A.身高突然增加

B.身体开始发胖

C.生殖器官开始发育

D.女孩出现了月经,男孩出现了遗精

题型:单项选择题

“十二五”期间,我国发展规划的战略性主要体现的方面有______。

A.统领全局

B.抓住重点

C.改善民生

D.正确把握好宏观经济和社会政策取向

E.围绕规划提出的目标和任务,加强发展政策的统筹协调

题型:单项选择题

如果工程咨询机构提供的咨询报告基本符合约定的条件,但也存在造成一定损失的缺陷,则( )。

A.雇主应向咨询机构支付约定的全部报酬
B.咨询机构应减收报酬,已收到全部报酬的应返还一部分给雇主
C.雇主应扣发和索赔原定支付给咨询机构的全部报酬
D.咨询机构应赔偿雇主的相应损失

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