·移动管子,确保内部连接牢固。(A)
A.Move the tube to make sure that the inner connection is tight. B.Move the tube to see if the inner connection is tight. C.Move the tube to identify the inner connection is tight.正确答案B
·移动管子,确保内部连接牢固。(A)
A.Move the tube to make sure that the inner connection is tight. B.Move the tube to see if the inner connection is tight. C.Move the tube to identify the inner connection is tight.正确答案B
