【单选题】What is the shape of the distribution?
A.
This distribution is left-tailed
B.
The distribution is approximately symmetrical
C.
This distribution is right-tailed
D.
There is a long left tail in this distribution
【单选题】弹簧振子在光滑水平面上作简谐振动,弹性力在半个周期内所作的功为
【简答题】下列函数原型中,可以作为类Base析构函数的是()。 (A)void~Base (B)~Base() (C)~Base()const (D)Base()
【多选题】PubMed中,用MeSH词检索“舌根肿瘤手术治疗”的文献,可以用检索式( )。
A.
"Tongue Neoplasms/surgery"[Mesh] AND tongue base
B.
"Tongue Neoplasms/surgery"[Mesh] AND "tongue base" OR "base of tongue" OR "base of the tongue"
C.
"Tongue Neoplasms/surgery"[Mesh] AND ("tongue base" OR "base of tongue" OR "base of the tongue")
D.
"Tongue Neoplasms/surgery"[Mesh] AND "Tongue Neoplasms/therapy"[Mesh] AND tongue base
【判断题】在一定环境条件下,阈值代表患病所需最低致病基因数。 ( )
【单选题】Which finding in a respiratory assessment tells the nurse that the child has an obstruction at the base of the tongue, or in the larynx?
【判断题】一弹簧振子,当把它水平放置时,或者竖直放置时,或者放在固定的光滑斜面上,它都可以作简谐振动。但是,它们的运动学方程 中的 是不同的。
【简答题】PubMed中可检索的字段没有( ) 。