【单选题】列关于糖类的说法错误的是 [ ]
B.
蔗糖、麦芽糖和纤维二糖都是二糖且是同分异构体
C.
淀粉和纤维素的组成都可以用式子(C 6 H 10 O 5 ) n 来表示且是同分异构体
D.
麦芽糖、纤维素、淀粉的最终水解产物都是葡萄糖
【判断题】水文地质指自然界中地下水的各种变化和运动的现象。
【单选题】(以下3题共用题干)患者,男性,50岁,近1个月发现过度劳累时心前区疼痛,入院诊断为冠心病、心绞痛。给予硝酸甘油含化治疗。患者吸烟史30年,血脂增高,过量进食,血糖高,喜饮浓茶。护士收集哪项资料最有利于评估病情
【单选题】The writer wrote Letter A because he ______.
A.
was worried about what present he should give
B.
wanted to make the whole family happy
C.
wanted to know some social customs for a dinner party
D.
would be a little late for a dinner party
【单选题】Tom Smith was a writer. He wrote detective stories for magazines. One evening he could not find an end for a story. He sat with his typewriter in front of him, but he had no ideas. So he decided to go...
【单选题】二进制数10101B转换为十进制数是()。
【判断题】工作职责是指职位应承担的主要职责,是职位说明书的核心内容。( )