问题
单项选择题
不能用来测定水中悬浮物的方法是（）。
A、滴定法
B、比浊法
C、浊度仪测定法
D、滤膜过滤法
答案
参考答案：A
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不能用来测定水中悬浮物的方法是（）。
A、滴定法
B、比浊法
C、浊度仪测定法
D、滤膜过滤法
参考答案：A
| Palenque was founded three centuries ago by runaway slaves in the jungle of Colombia. On the surface, it (62) any other impoverished Colombian village. But when adults here speak with one another, their language draws (63) from as far away as Africa. This (64) speech is known as Palenquero. Theories about its (65) vary, but one thing is certain: It (66) for centuries in this small community, which is now struggling to keep it from (67) . The survival of Palenquero (68) San Basilio de Palenque, part of whose (69) name is the Spanish word for a fortified village of runaway slaves. Different from other villages that were conquered, this community has successfully (70) threats to its existence to this day. (71) for keeping it live face an uphill struggle. The isolation that one (72) the language from the outside world has come to an end. But people say the biggest (73) to their language’s survival comes form (74) contact with outsiders. Many here have had to (75) nearby banana (76) or cities for work, and then found themselves (77) scorn because of the way they spoke. Undaunted by the (78) of its disappearing after centuries of use, Rutsely Obeso, a linguist, is (79) a dictionary to be used in the school. Efforts were (80) with little government assistance despite that the community now (81) a mecca for anthropologists and linguists. |
A．defended
B．resisted
C．fended off
D．withstood