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【单选题】
关于Ph染色体，下列叙述正确的是（）A.
大多数为t（9；22）（q34；q11）
B.
仅出现于中性粒细胞
C.
仅为慢性粒细胞白血病所特有的异常染色体
D.
慢性粒细胞白血病急变后，Ph染色体消失
E.
慢性粒细胞白血病治疗缓解后，Ph染色体消失
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举一反三
【简答题】______工具一般在编辑矢量曲线时用于调整和移动矢量曲线的锚点和切线，或选取和移动单一对象。
【单选题】患者,男性,52岁,转移性右下腹痛5小时,伴恶心、呕吐、发热。最能提示该患者患有阑尾炎的体征是
A.
移动性浊音
B.
右下腹固定压痛
C.
腹胀明显
D.
肠鸣音减弱或消失
E.
腹肌紧张
【简答题】radio frequency
【单选题】In recent years, satellite television has started to be broadcast in the radio frequency range______.
A.
between 3.4 GHz and 7 GHz
B.
between 12 GHz and 14 GHz
C.
between 14 GHz and 21 GHz
D.
between 21 GHz and 27GHz
【多选题】Bluetooth is a proposed Radio Frequency specification for ()
A.
short range
B.
point-to-multipoint voice
C.
data transfer
D.
modem
【单选题】When can routine communications be resumed on a frequency or channel on which radio silence has been imposed ________．
A.
After determining that the frequency or channel appears to be no longer in use
B.
After determining that geographic distance from the distress situation will prohibit any other signal from interfering with emergency communications
C.
After the Rescue Coordination Center transmits a message on the frequency or channel being used for emergency communications stating that such traffic has concluded
D.
Routine communications can resume if，in the Master's opinion，communications on that frequency or channel will not interfere with emergency communications
相关题目：
【单选题】患者,男性,52岁,转移性右下腹痛5小时,伴恶心、呕吐、发热。最能提示该患者患有阑尾炎的体征是
A.
移动性浊音
B.
右下腹固定压痛
C.
腹胀明显
D.
肠鸣音减弱或消失
E.
腹肌紧张
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