
【名词&注释】
严格控制(strictly controlled)、均匀度(evenness)、糖尿病人(diabetic patients)
[判断题]糖尿病人需严格控制饮食。
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举一反三:
[单选题]判断船舶是否走锚,可在船中部舷旁垂直放一测深铅锤,当发现测深铅锤绳向前斜伸,说明:()
A. 走锚
B. 没有走锚
C. 难以判断
D. A. B都可能
[单选题]在燃油喷射过程中如喷油压力增大,其对油束特性的影响是( )。Ⅰ.雾化细度提高;Ⅱ,油束锥角减小;Ⅲ.油束射程减小;Ⅳ,雾化均匀度提高;Ⅴ.油束射程增大;Ⅵ.油粒平均直径减小。
A. Ⅰ+Ⅱ+Ⅲ+Ⅴ
B. Ⅰ+Ⅲ+Ⅳ+Ⅴ
C. Ⅰ+Ⅲ+Ⅳ+Ⅵ
D. Ⅰ+Ⅳ+Ⅴ+Ⅵ
[单选题]If fuel injection to a four-stroke/cycle diesel engine begins earlier than designed, ignition may be delayed because the
A. cylinder compression pressure may not be high enough
B. cylinder compression temperature may be too high
C. fuel oil injection pressure may not be high enough
D. scavenge and purge process is incomplete
[单选题]已知起航点纬度Φ123°24ˊ.2N,到达点纬度Φ239°16ˊ.4N,则两地间的纬差DΦ为:()
A. 15°52ˊ.2N
B. 16°07ˊ.8N
C. 14°52ˊ.2N
D. 62°40ˊ.6N
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