18.正常人的肺一分钟大约呼吸的次数是( )
0 115049 115057 115063 115067 115073 115075 115079 115085 115087 115093 115099 115103 115105 115109 115115 115117 115123 115127 115129 115133 115135 115139 115141 115143 115144 115145 115147 115148 115149 115151 115153 115157 115159 115163 115165 115169 115175 115177 115183 115187 115189 115193 115199 115205 115207 115213 115217 115219 115225 115229 115235 115243 150026
A. | 26 | B. | 40 | C. | 16 | D. | 60 |