The authors purpose in writing this text is______.
A. to describe recent environmental policy
B. to point out the difficulties inherent in protecting national parks
C. to call for the protection of national parks
D. to analyze the current status of national parks
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According to the article, which of the following is an example of a "career-oriented" high
A student who decides to not finish high school.
B. A student who plans on joining the Army.
C. A student who works while in high school.
D. A student who is proficient in reading.
某企业有一回配电线路,其计算电流为78安培,试选出相应的电流互感器变比KTA:()
A 75/5
B 100/5
C 59/5
D 全都可以
What portion of the students tested in the study were proficient in reading？
A. One-tenth.
B. More than one-tenth.
C. Less than one-tenth.
D. The results were varied.
在检验砌筑砂浆强度等级时，应采用多孔砖()为砂浆强度石块底膜。
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