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【单选题】
只存在于脱氧核糖核酸中,不存在于核糖核酸中的碱基是( )A.
A
B.
U
C.
C
D.
T
E.
G
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【简答题】A good (instruct) _______ will show you how to use the machine.
【单选题】Trust is a tricky business. On the one hand, it's a necessary condition 1 many worthwhile things: child care, friendships, etc. On the other hand, putting your 2, in the wrong place often carries a hi...
A.
In contrast
B.
As a result
C.
On the whole
D.
For instance
【简答题】工程竣工验收后10日内，应向委托部门报送建设工程质量监督报告。
【单选题】患者,男,15岁。1型糖尿病患者需终身注射胰岛素。护士对其及家长进行如何注射胰岛素的指导中,不正确的是
A.
不可在发炎、有瘢痕、硬结处注射
B.
经常更换注射部位
C.
注射剂量要准确
D.
行皮下注射，进针角度90°
E.
进针不能有回血
【单选题】It is so good a habit to instruct children to lay things _______ they belong when they are young.
A.
to which
B.
that
C.
in which
D.
where
【单选题】Life in London has so many________-nightclubs，good restaurants and so on. [ ]
A.
collections
B.
instructions
C.
attractions
D.
expressions
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