问题
单项选择题
属于消化道pH改变而影响药物吸收的是
A．抗胆碱药阻碍四环素的吸收
B．考来烯胺减少了地高辛的吸收
C．多潘立酮减少了核黄素的吸收
D．氢氧化钙减少了青霉胺的吸收
E．饭后服用红霉素减少了红霉素的吸收
答案
参考答案：A
解析：四环素吸收需要酸性环境，抗胆碱药可升高消化道pH阻碍四环素的吸收。
搜题请搜索小程序“爱下问搜题”
属于消化道pH改变而影响药物吸收的是
A．抗胆碱药阻碍四环素的吸收
B．考来烯胺减少了地高辛的吸收
C．多潘立酮减少了核黄素的吸收
D．氢氧化钙减少了青霉胺的吸收
E．饭后服用红霉素减少了红霉素的吸收
参考答案：A
解析：四环素吸收需要酸性环境，抗胆碱药可升高消化道pH阻碍四环素的吸收。
Directions: There are 10 blanks in the following passage. For each numbered blank, there are four choices marked A, B, C and D. Choose the best one and mark your answer on the ANSWER SHEET with a single line through the center.
| Our planet is like a bit spaceship. Our atmosphere acts (51) a shield against harmful radiation and space debris. (52) holds the air and people on the spaceship, (53) everything doesn’t float away. Each of us is an astronaut and our spaceship, the earth, provides our food and water. The sun is our energy (54) and without it we would not be able to survive. (55) every spaceship, the earth is a closed system. The only thing we receive from the outside is energy from the sun. Everything else must be used (56) again. We astronauts don’t seem to realize that this spaceship is the (57) one we’ve got. We (58) its resources and waste the energy the plants have stored from the sun. If we (59) our spaceship, we will destroy ourselves as well. Maybe if we look at the universe which surrounds us, we will appreciate our own spaceship more and take (60) care of it. |
A．Granite
B．Gravity
C．Gratitude
D．Grace