資訊推薦

• 62. The endoplasmic reticulum and Golgi apparatus are very similar among the groups of alga-like pro
• 58. A gastrovascular cavity, with a single opening, is the characteristic digestive system of animal
• 60. If two modern organisms are distantly related in an evolutionary sense, then one should expect t
• 61. How do cleavage divisions differ from normal mitotic cell divisions?(A) Cleavage divisions occur
• 65. Cephalization is generally associated with all of the following except(A) bilateral symmetry. (B
• 64. According to the wobble rules, a tRNA with the anticodon 5'-GAU-3' can recognize the c
• 63. In the presence of an antibiotic prokaryotic translation can initiate, but only dipeptides that
• 26.有關自來水事業之經營方式，下列何者正確？(A)以公營為原則，並得准許民營 (B)以公營為原則，不得准許民營(C)以民營為原則，並得准許公營 (D)以公辦民營為原則
• 3. In a sinusoidal-ac circuit, the current is I=I0sin(ωt +θ) . What is the rms(root-mean-square) cur
• 54. The following organism with the greatest number of Hox genes should be a(n)(A) fish. (B) fly. (C
• 2. A long solenoid of 500 turns carrying a current of 3.8 A produces within itself a uniform magneti
• 5. A sample of 770 mol of nitrogen gas is maintained at a constant pressure of 1.00 atm in a flexibl
• 4. A cylinder of mass 10.0 kg rolls without slipping on a horizontal surface. At the instant when it
• 16.右圖為均佈荷重的簡支樑，下列何者不是最大力矩(moment) M 的所在位置？(A)剪力為零處(B) dM / dx = 0 處(C)左方支點處(D)樑的中央處
• 6. A 1.00-kg mass is attached to a horizontal spring. The spring is initially stretched by 0.100 m a
• 7. What is the absolute pressure at the bottom of a lake that is 30.0 m deep, when the air pressure
• 9. Suppose that the temperature at the center of the Sun is 2.00×107 K, what is the average translat
• 11.When radiation of wavelength 350 nm is incident on a surface, the maximum kinetic energy of the p
• 10. A nonconducting sphere of radius 10 cm has charge uniformly distributed throughout its volume. T
• 8. A magnetic field given by B（t）=0.2t - 0.5t2 T is directed perpendicular to the plane of a circula
• 14. An important observation that led Bohr to formulate his model of the hydrogen atom was the fact
• 15. If the peak electric field in an electromagnetic wave is 1200 V/m , what is the peak magnetic fi
• 12. An electron in the hydrogen atom makes a transition from the n=5 level to the n=2 level. What is
• 13. A proton is projected toward a fixed nucleus of charge +Ze with velocity V0 . Initially the two
• 17. Electromagnetic standing waves are set up in a conducting cavity resonator in the form of a holl