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【单选题】
某α地中海贫血患者,一条16号染色体α基因缺失类型为东南亚型(α-SEA),另一条染色体为非缺失型的α2基因突变(Hb Quong Sze)(即αQS),则该患者的地贫类型属于( )A.
Hb Bart’s胎儿水肿综合征
B.
HbH病
C.
标准型α地中海贫血
D.
静止型α地中海贫血
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皮皮学刷刷变学霸
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【单选题】I like this 3G cellphone very much, but it costs almost _______that one.
A.
four times as many as
B.
as four times many as
C.
four times as much as
D.
as four times much as
【单选题】A commonly used rule of thumb is that it costs approximately ____ times as much to get a new customer as it does to keep an existing customer.
A.
three
B.
four
C.
five
D.
six
【单选题】I like this 5G cellphone very much, but it costs almost _______that one.
A.
four times as many as
B.
as four times many as
C.
four times as much as
D.
as four times much as
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