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【简答题】
John liked chocolates very much, but his mother never gave him any, because they were bad for his teeth, she thought. But John had a very nice grandfather. The old man loved his grandson very much, and sometimes he brought John chocolates when he came to visit him. Then his mother let him eat them, because she wanted to make the old man happy. One evening a few days before John's seventh birthday, he was saying his prayer in his bedroom before he went to bed. "Please, God," he shouted, "make them give me a big box of chocolates for my birthday on Saturday." His mother was in the kitchen, but she heard the small boy shouting and went into his bedroom quickly, "Why are you shouting, John?" she asked her son, "God can hear you when you talk quietly." "I know," answered the clever boy with a smile, "but grandfather's in the next room, and he can't."
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【单选题】下列关于外汇挂钩类理财产品的期权拆解的说法,错误的是( )。
A.
期权拆解分为一触即付和双向不触发期权
B.
一触即付期权的理财计划到期时,若最终汇率收盘价低于触发汇率,总回报=保证投资金额×(1+最低回报率)
C.
一触即付期权的理财计划到期时,若最终汇率收盘价低于触发汇率,总汇报=保证投资金额×(1+最低回报率)
D.
双向不触发期权指在一定投资期间内,若挂钩外汇在整个期间未曾触及卖方所预先设定的两个触及点,则卖方不支付当初双方约定的回报率
【单选题】(2019·苏州一模改编)科研人员用茶树离体叶片测定了气孔导度(指单位时间、单位面积叶片通过气孔的气体量)、净光合速率的变化,结果如下图所示。下列相关叙述错误的是
A.
4 min时,光合作用消耗的CO2来自外界环境和线粒体
B.
16 min时,产生ATP的场所为细胞质基质和线粒体
C.
与8 min时相比,4 min时叶绿体中的三碳化合物含量较高
D.
0~4 min内,叶肉细胞净光合速率下降可能由暗反应速率下降所致
【单选题】无论是哪一类停车线,由于考虑到行人过街安全,停车线均应后退人行横道线至少( )的间距 。
A.
1 米
B.
1.5 米
C.
3 米
D.
3 .5米
【判断题】容积调速回路与节流调速回路相比,既无溢流损失又无节流损失,系统发热少,效率较高。
A.
正确
B.
错误
【简答题】某研究小组用如图所示装置进行铜与浓硫酸反应的实验研究。 (1)写出试管B中的实验现象______________________。 (2)写出A中反应的化学方程式______________________。 (3)继续向A试管中加入H 2 O 2 ,发现铜片溶解,反应的离子方程式为:______________________。若仍不补充浓硫酸,只要求使铜片溶解,也可以加入(填写两种属于不同类别...
【多选题】PHP 中关于上传文件的说法中正确的有 :
A.
在 php.ini 配置中 必须要开启 file_uploads=On 功能
B.
在上传表单标记中 , 必须要有 enctype="multipart/form-data" 属性
C.
必须用 get 方法进行上传
D.
D) 以上说法都正确
【单选题】在建立桥梁模型时下部墩台结构类型及结构尺寸所套用的图纸我们称之为(      )。
A.
上部标准图
B.
下部标准图
【简答题】与节流调速回路相比,容积调速回路既无()损失,又无溢流损失。
【简答题】建立科目编码时应先建立下级科目,再建立上级科目。( )
【单选题】犬的心脏位于胸腔内,偏左侧在第()肋之间
A.
第6~7
B.
第3~5
C.
第2~3
D.
第3~7
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