【单选题】通常在秋季植物地上部分将枯萎时或春初发芽前期采收的药材有( )
【单选题】用硝酸银络合色谱法(苯:无水乙醚=5:1作洗脱剂)分离下列化合物各成分的流出先→后顺序为:
【单选题】真空冷冻干燥保藏菌种时,菌种是处于( )保藏的。
【简答题】Unit 02 Please read the following passage and choose one answer to fill in each blank. On August 6, 1945, an American aircraft __ 1 __ a bomb on the Japanese town of Hiroshima. The bomb __ 2 _ 1,000 f...
【单选题】患者大出血,表情淡漠,血压下降,尿少,不应采用下列哪项措施
【简答题】I . 完形填空 The year is 2094. It has been announced that comet ( 彗星 ) is heading towards the Earth. Most of it will miss our planet, but two pieces will probably 1 the southern half of the Earth. On 17 J...
【简答题】第五套 Questions 1 and 2 will be based on the following news item. 1 A. Christmas-time attacks made by Somali rebels. B. An explosion at a bus station in central Nairobi. C. The killing of more than 70 U...
【单选题】中学生刘某在初中一年级上学,她觉得家庭经济状况不好,自己成绩也不理想,便不想上学了。老师找到她谈话,她却说:“受教育是公民的一项权利,纯属个人私事,我可以放弃,”这段材料主要说明了( )。
D.
刘某的言行违背了受教育既是公民的权利,又是公民的义务,作为义务是必须履行的