The jelly is chemically inert since no additives are needed for gelation. This allows chemicals dissolved in the jelly’s aqueous phase to diffuse well, a prerequisite for testing if certain species or strains are resistant to antibiotics or antifungals. In these simple assays, zones of growth inhibition of bacteria or fungi (or their absence) point to the effectiveness of (or resistance towards) antibiotics or antifungals.
However, Kosmos 482's parachute system, originally intended to slow the lander's descent towards Venus, is likely to have degraded after more than 50 years in space.
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People across region are bracing for possibility of conflict as embassies evacuate staff and flights are cancelled，推荐阅读搜狗输入法下载获取更多信息
American citizen among those killed in Cuba boat shooting, US official says。业内人士推荐WPS官方版本下载作为进阶阅读