Advancing age means losing your hair, your waistline and your memory, right? Dana Denis is just 40 years old, but (21)______

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问题    Advancing age means losing your hair, your waistline and your memory, right? Dana Denis is just 40 years old, but  (21)______ she’s worried about what she calls "my rolling mental blackouts." "I try to remember something and I just blank out," she says.
   You may  (22)______ about these lapses, calling them "senior moments" or blaming "early Alzheimer’s(老年痴呆症)." Is it an inescapable fact that the older you get, the  (23)______ you remember? Well, sort of. But as time goes by, we tend to blame age  (24)______ problems that are not necessarily age-related.
   "When a teenager can’t find her keys, she thinks it’s because she’s distracted or disorganized," says Paul Gold "A 70-year-old blames her  (25)______  ." In fact, the 70-year-old may have been  (26)______ things for decades.
   In healthy people, memory doesn’t worsen as  (27)______ as many of us think. "As we  (28)______ , the memory mechanism isn’t  (29)______  ," says psychologist Fergus Craik. "It’s just inefficient."
   The brain’s processing  (30)______ slows down over the years, though no one knows exactly  (31)______ Recent research suggests that nerve cells lose efficiency and  (32)______ there’s less activity in the brain. But, cautions Barry Gordon, "It’s not clear that less activity is  (33)______ . A beginning athlete is winded(气喘吁吁)more easily than a  (34)______ athlete. In the same way,  (35)______ the brain gets more skilled at a task, it expends less energy on it.
   There are  (36)______ you can take to compensate for normal slippage in your memory gears, though it  (37)______ effort. Margaret Sewell says: "We’re a quick-fix culture, but you have to  (38)______ to keep your brain  (39)______ shape. It’s like having a good body. You can’t go to the gym once a year  (40)______ expect to stay in top form."

选项 A、irregular
B、better
C、normal
D、worse

答案D

解析这句话的意思是：尚不清楚活动较少是否会更糟。其他选项：A．irregular不规则的，B．better更好，C．normal正规，均不合题意，因此D为正确答案。

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Advancing age means losing your hair, your waistline and your memory, right? Dana Denis is just 40 years old, but (21)______

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