试件经预热后进行插销试验时,要保持载荷()。
A.6h
B.12h
C.24h
D.48h
参考答案:C
北方某患者,十余年前有黑热病史,近日在面部、四肢或躯干部有皮肤结节、丘疹和红斑,从这些组织的刮取物涂片上查见利什曼原虫,应考虑为
A.内脏利什曼病(黑热病)
B.皮肤型黑热病
C.热带利什曼病
D.淋巴结型黑热病
E.黏膜皮肤利什曼病
用括号内所给词的适当形式填空。
1. It's _____ (little) of a problem to tell you the _____ (true).
2. Please turn off the radio and don't be _____ (noise).
3. Have you heard of a _____ (fun) story about a dog?
4. Have you made a _____ (finally) decision to go abroad?
5. The boy pretended _____ (sleep), but in fact he is awake.