【单选题】下列关于疝的描述,正确的是?
A.
初发新疝孔,由于刚刚发生,肌纤维断裂后收缩,疝孔变厚。
B.
陈旧性疝孔,由于发生较久,肌纤维断裂后未再生,导致疝孔边缘变薄。
【单选题】What does the passage mainly discuss?
A.
Characteristics of soil quality.
B.
Particles typically found in soil.
C.
The importance of soil texture.
D.
How to determine soil texture.
【单选题】在控制系统中,把执行机构可近似地看成是_____环节。
【单选题】An engineer has designed _______ robot that can work in _______ deep sea to clean waste.
【单选题】采用微柱色谱法检查黄曲霉毒素,所测结果为
【单选题】Permission is requested to pump out about 200 tons of clean sea ballast water for ______ purposes.
【判断题】( ) 摩洛哥人酷爱饮茶,加白糖的红茶是摩洛哥人社交活动中必备的饮料。
【单选题】Permission is kindly ______ about 1000 tons of clean sea water ballast,as and when required for trimming purposes.
C.
requesting to pump out
D.
requesting pumping out