L.

A．Unified has made the rule about homework mainly because poor students_____.

[A]tend to have moderate expectations for their education

[B]have asked for a different educational standard

[C]may have problems finishing their homework

[D]have voiced their complaints about homework

[单选题]库柏（L．A．Cooper）和谢帕德（R．N．Shepard）在“心理旋转”实验中发现，每种反应都包括最基本的选择反应时即基线反应时，反映基线反应时的刺激旋转角度是A．0° B．90° C．180° D．270°

[单选题]500mlHCl溶液是（）L.A . 50.00B . 5.00C . 0.50D . 0.05

[单选题]l．下列属于隐蔽抗原的是A．伤寒杆菌B．HLA抗原C．红细胞血型抗原D．眼晶状体E．类毒素

[判断题]水稻的学名是Oryza sativa L．。( )A．正确B．错误

[单选题]一天然水中锑的浓度平均约为（）ug/L.天然水中铋的浓度在（）ug/L.左右。A . 0.01，0.1B . 0.020.2C . 0.1，0.01D . 0.2，0.02

[单选题]l．—Hello! My name_________ Tom．—Hello! I _________ Kate．A． is ; isB． am ; amC． am; isD． is ; am

[单选题]小米（粟、谷子）[Setariaitalica（L．）Bealgv．]与（）同属于一个属。A . 燕麦B . 狗尾草C . 针茅D . 大麦

[单选题]在某一天对某一浓度水平血糖质控品进行重复检测4次，其测定结果分别为5.2mmol/L. 5.3mmol/L. 5.4mmol/L. 5.4mmol/L

[单选题]小米(粟、谷子)[Setaria italica(L．)Beauv．]与( )同属于一个属。A．燕麦B．狗尾草C．针茅D．大麦

[单选题]小米(粟、谷子)[Setaria italica(L．)Beauv．]与( )同属于一个属。A．燕麦B．狗尾草C．针茅D．大麦