水碰到高温催化剂迅速汽化,而使催化剂颗粒崩裂的现象叫做催化剂热崩。
参考答案:对
读下面的小故事,判断正(T)误(F)。
There are four people (人) in my family: my grandma, my father, my mother and I. My father is a doctor.(医生) My mother is an English teacher. My grandma doesn't work. She is old. Sometimes (有时), she helps my
mother do the housework (家务活). I am primary school pupil (小学生). I study hard (努力学习). I love my
family.
( ) 1. There are three people in my family.
( ) 2. My mother is a teacher.
( ) 3. My grandma doesn't do the housework.
( ) 4. My grandma is old.
( ) 5. My father works in a hospital (医院). He is a doctor.
12月中旬,一8个月婴儿来院就诊,呕吐、腹泻2天伴发热、流涕,大便10次/日,水样便,呕吐4~6次/日。体检:皮肤干燥,弹性差,口唇樱红,腹泻,腱反射弱。大便镜检:白细胞0~1/HP,下列何种治疗措施不恰当()。
A.暂停乳类食品,代之以豆类代乳品
B.及时足量、足疗程给予抗肠道杆菌之抗生素
C.根据脱水程度进行补液
D.补液的同时纠正酸中毒
E.有尿后,静脉补钾浓度为0.3%