3.5×2÷3.5×2=l.______.(判断对错,对的打“√”,错的打“×”)
3.5×2÷3.5×2,
=7÷3.5×2,
=2×2,
=4;
故答案为:×.
某男,60岁。近期自觉听力下降明显,伴耳中蝉鸣,头目眩晕,腰膝酸软,脉沉细。据此判断,其病机当为()
A.精脱
B.气脱
C.血脱
D.津脱
E.液脱
图示梁EI=常数,B端的转角是:()
A.A
B.B
C.C
D.D