【单选题】Please fill in the blanks with given words. 5. It is simple pleasures, such as a walk on a sunny day, that have a( n) _____ effect of improving our general mood.
【单选题】Why have you got a(n) __________ on your face on such a beautiful day?
【简答题】简述 电子控制动力转向系统(EPS)的优点
【判断题】地沟油转化制生物柴油,可以采用碱催化剂催化其进行转酯化反应实现。
【单选题】当老年人没有坐满坐稳轮椅时,护理员应该
D.
绕到轮椅后方,双手从老年人腋下伸到前面,将老年人身体向后移动
【单选题】下列关于苏联解体的原因的论述哪个是错误的?()
B.
苏联没有能够坚定不移地按照马克思主义民族观对待民族问题
C.
西方国家持续削弱苏联的政权基础和国家综合实力
【单选题】下列碳素工具钢中碳含量最高的钢种是( )。
【单选题】What a(n) _______ it is that the new couple were born in the same year and on the same day.