激活糜蛋白酶原的物质是()
A.肠致活酶
B.胰蛋白酶
C.盐酸
D.组胺
E.辅酯酶
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五.单词拼写(共6小题;每小题1分,共6分)
1. Tianshan is home to a great d__________ of plants and animals .
2..He didn’t pass the exam d_________ to his laziness.
3.There is no d_________ that the earth is becoming warmer.
4.Tom g_________ through the report before he got into the meeting room.
5.He a_________ himself quickly to the environment.
6.We all wondered why John o_________ the building of a motorway.
收到信访工作机构改进建议的行政机关应当在多少日内书面反馈情况?
更换压力表时,所测压力应在选用压力表量程的()范围内。
A、1/2~1
B、1/2~2/3
C、1/3~2/3
D、1/3~1/2
0dBv是指在开路情况下,该设备输出口得到的电平值为()V。
患者女性,因反复腹痛1年行胃镜检查诊断为消化性溃疡,不符合该患者腹痛特征的是
A.中上腹疼痛
B.为节律性痛
C.周期性痛
D.为烧灼样痛
E.疼痛能准确反映溃疡所在的解剖部位