在使用兆欧表前,应先将表平放,观察试验指针是否()处,然后才能测量,否则不可使用。
A.在“∞”
B.在“0”
C.在“∞”和“0”
D.在最大和最小
参考答案:C
句子改写。
请按要求变换句型,每空一词。
1. My hair is black.(就划线部分提问).
__________ __________ is your hair?
2. He looks young.(就划线部分提问)
__________ __________ he look like?
3. She has two short arms.(改为否定句)
She __________ __________ two short arms.
4. We are from Cuba. (改为一般疑问句)
__________ __________ from Cuba?
5. His father is fine.(就划线部分提问)
__________ __________ his father?
男,55岁,突发左下肢疼痛、苍白、麻木,诊为急性动脉栓塞入院,栓子最可能来自( )。
A.静脉 B.脾脏 C.肺脏D.肝脏 E.心脏