一个基因的DNA序列是 3 -C C A T G C T A- 5,那么从这一基因转录来的mRNA序列为()。 A: 5-C C A T G C T A- 3 B: 3-G G T A C G A T- 5 C: 3-A T C G T A C C-5 D: 5-G G U A C G A U-3
一个基因的DNA序列是 3 -C C A T G C T A- 5,那么从这一基因转录来的mRNA序列为()。 A: 5-C C A T G C T A- 3 B: 3-G G T A C G A T- 5 C: 3-A T C G T A C C-5 D: 5-G G U A C G A U-3
3-G takes ______ market share. In the last quarter, 20% of the sales were 3-G phones. A: considered B: considering C: considerable D: considerate
3-G takes ______ market share. In the last quarter, 20% of the sales were 3-G phones. A: considered B: considering C: considerable D: considerate
3-G takes ______ market share. In the last quarter, 2O% of the sales were 3-G phones. A: [A] considered B: [B] considering C: [C] considerable D: [D] considerate
3-G takes ______ market share. In the last quarter, 2O% of the sales were 3-G phones. A: [A] considered B: [B] considering C: [C] considerable D: [D] considerate
BIMMAKE中放置第一个轴网并命名为3-F之后,复制轴网3-F创建新轴网,生成的新轴网名称为_______ A: G B: 2-F C: 3-F1 D: 3-G
BIMMAKE中放置第一个轴网并命名为3-F之后,复制轴网3-F创建新轴网,生成的新轴网名称为_______ A: G B: 2-F C: 3-F1 D: 3-G
下列反应中,放出热量最多的是[br][/br](1.5) A: C2H5OH (g) + 3 O2 (g) → 2 CO2 (g) + 3 H2O (g) B: C2H5OH (l) + 3 O2 (g) → 2 CO2 (g) + 3 H2O (g) C: C2H5OH (g) + 3 O2 (g) → 2 CO2 (g) + 3 H2O (l) D: C2H5OH (l) + 3 O2 (g) → 2 CO2 (g) + 3 H2O (l)
下列反应中,放出热量最多的是[br][/br](1.5) A: C2H5OH (g) + 3 O2 (g) → 2 CO2 (g) + 3 H2O (g) B: C2H5OH (l) + 3 O2 (g) → 2 CO2 (g) + 3 H2O (g) C: C2H5OH (g) + 3 O2 (g) → 2 CO2 (g) + 3 H2O (l) D: C2H5OH (l) + 3 O2 (g) → 2 CO2 (g) + 3 H2O (l)
某金属凝固时其临界晶核形核功为△G*,其临界晶核界面能为△G,则△G*和△G的关系为( )。 A: △G=1/3△G* B: △G=△G* C: △G=2/3△G* D: △G=3△G*
某金属凝固时其临界晶核形核功为△G*,其临界晶核界面能为△G,则△G*和△G的关系为( )。 A: △G=1/3△G* B: △G=△G* C: △G=2/3△G* D: △G=3△G*
系统的传递函数为G(s)=3/(s+0.2),则其频率特性是(). A: G(jw)=3/(s+0.2) B: G(jw)=3/(w+0.2) C: G(jw)=3/√(w∧2+0.04) D: G(jw)=(3/(w∧2+0.04))*(0.2-jw)
系统的传递函数为G(s)=3/(s+0.2),则其频率特性是(). A: G(jw)=3/(s+0.2) B: G(jw)=3/(w+0.2) C: G(jw)=3/√(w∧2+0.04) D: G(jw)=(3/(w∧2+0.04))*(0.2-jw)
[color=#000000]鹿茸的用量为∶ [/color] A: 3~10 g B: .1~3 g C: 3~5 g D: 10~15 g E: 15~20 g
[color=#000000]鹿茸的用量为∶ [/color] A: 3~10 g B: .1~3 g C: 3~5 g D: 10~15 g E: 15~20 g
已知下列反应N2(g) + 3H2(g) = 2NH3(g) (1)1/2N2(g) + 3/2H2(g) = NH3(g) (2) 1/3N2(g) + H2(g) = 2/3NH3(g) (3)的平衡常数分别为 Kθ1 、Kθ2 、Kθ3 ,则它们的关系是 A: Kθ1=Kθ2=Kθ3 B: Kθ1 = (Kθ2)2 = (Kθ3)3 C: Kθ1 =3/2Kθ2 =2/3Kθ3 D: Kθ1 = (Kθ2)1/2 = (Kθ3)1/3
已知下列反应N2(g) + 3H2(g) = 2NH3(g) (1)1/2N2(g) + 3/2H2(g) = NH3(g) (2) 1/3N2(g) + H2(g) = 2/3NH3(g) (3)的平衡常数分别为 Kθ1 、Kθ2 、Kθ3 ,则它们的关系是 A: Kθ1=Kθ2=Kθ3 B: Kθ1 = (Kθ2)2 = (Kθ3)3 C: Kθ1 =3/2Kθ2 =2/3Kθ3 D: Kθ1 = (Kθ2)1/2 = (Kθ3)1/3
已知int f(int);和int g(int);是函数f 和g 的原形。下列语句中,将函数f 作为表达式调用的有( ) A)f(3); B B)p=f(3); C)g(f(3)); D)f(g(3)); A: f(3); B: p=f(3); C: g(f(3)); D: f(g(3));
已知int f(int);和int g(int);是函数f 和g 的原形。下列语句中,将函数f 作为表达式调用的有( ) A)f(3); B B)p=f(3); C)g(f(3)); D)f(g(3)); A: f(3); B: p=f(3); C: g(f(3)); D: f(g(3));