组织声环境是指超声治疗时,影响超声能量沉积的媒质(组织)因素。()
A. 对
B. 错
超声消融术中引导是通过超声声像图实现的。()
A. 对
B. 错
Complete the sentences with the following words .Change the forms if necessary.protectpreventessentialfeedfreezereliableadvancecauseadaptcase
I think it wii ____________ a lot of time to teach the children who have not habit of reading.
A. take
B. make
C. do
D. offer