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句型转换。 1. She is so short that she can't reach the apple. (改为同义句) She is _____ short _____ reach the apple. 2. He hiccupped for five months . (对画线部分提问) _____ _____ did he hiccup? 3. What's the matter with her sister?(改同义句) _____ _____ with her sister? 4. He went to school at the age of seven. (改为同义句) He went to school _____ he _____ seven years old. 5. My sister goes to a movie once a week . (对画线部分提问) _____ _____ does your sister go to a movie?
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【简答题】整理表1测回法观测记录。
【简答题】(Now that they are all here), let us start the discussion.
【简答题】整理表中的测回法水平角观测记录。用DJ6光学经纬仪观测，要求半测回差及各测回互差均小于±40"。 测站 盘位 目标 水平度盘读数 水平角 各测回平均角值 半测回角值 一测回角值 O 第一 测回 左 A 0°01'00' B 88°20'48' 右 A 180°01'30' B 268°21'12' O 第二 测回 左 A 90°00'06' B 178°19'36' 右 A 270°00'36' ...
【单选题】用测回法观测水平角,完成上半测回后发现水准管气泡偏离2格多,应_________。
A.
继续观测下半测回
B.
整平后观测下半测回
C.
整平后全部重测
D.
以上均不正确
【单选题】对称星形负载R接于对称三相三线制电源上，如图所示，若电源线电压为380V，当开关S打开后，电压的测量值为( )。【图片】
A.
380V
B.
220V
C.
190 V
D.
110 V
【简答题】阅读理解 Let us suppose it is now about A. D. 2060. Let us believe it is about sixty years from now. Of course, things have changed and life is very different. Voyages to the moon are being made every d...
【单选题】对称星形负载 R 接于对称三相三线制电源上,如图所示,若电源线电压为 380V ,当开关 S 打开后,电压的测量值为 ( ) 。
A.
380V
B.
220V
C.
190 V
D.
110 V
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