肾经分布于胸腹部第1侧线上,是指胸部为______,腹部为______。
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本经的首穴为______,末穴为______,左右各______穴。
足少阴肾经腧穴主治______、______、肺、肾及经脉循行部位的病症。
_______ is a sudden, drastic change in wind speed and/or wind direction over a small area. (P241)
A. Wind shear
B. Turbulence
C. Thunderstorm
D. Lightning
Thunderstorms produce some of the most dangerous weather elements in aviation, and you should avoid _____ them.
A. penetrating
B. to penetrate
C. penetrate
D. penetrated