【单选题】According to the passage,the hunters imitate ostriches because_____.
A.
they want to gain the trust of their intended prey
B.
they would like to entertain each other after a hard day's work
C.
ostriches are easier to imitate than elands
D.
if seen they could hide their heads in the ground
【单选题】[单-内科护理学] 患者男性,36岁。慢性周期性上腹痛2年,最近1周常感觉头晕。血常规:红细胞3.2×1012/L,血红蛋白72g/L,白细胞6.0×109/L,血小板140×109/L。大便隐血试验(++)。该患者贫血的严重程度是
【简答题】Some students cheat(作弊) because they’re busy or lazy and they want to get good grades without 43 the time studying. Other students might feel that they can’t pass the test without cheating. Even when ...
【简答题】机器有三大特征: (1) 是一种人为的 __________ ; (2) 组成整体的各实物单元之间具有确定的 ____________ ; (3) 可以代替人的劳动,实现能量转换或完成有用的 _________ 。
【简答题】Even the agers are , and they don’t want to th eir parents.
【单选题】Why do Americans hurry at meals?
B.
They want to eat dinner slowly.
C.
They don't like to eat.
【单选题】[单-内科护理学] 患者男性,36岁,上腹部间歇性疼痛3年,空腹及夜间痛明显,进食后可缓解。3天前出现黑便,患者出现黑便的原因最可能是